Five Hundred and Fifty Million in Numbers

How to write 550,000,000 in words

The number 550,000,000 is written “five hundred and fifty million” in British English. Notice the word “and”: British English places it between the hundreds and the rest of the group. American English usually leaves it out.

Because 550,000,000 is below one thousand it is a single group: name the hundreds and stop. That gives “five hundred and fifty million”.

In running text the number is normally lowercase: “the fee is five hundred and fifty million pounds”. At the start of a sentence, in a heading, or on a legal document it takes capitals: Five Hundred and Fifty Million. Formal documents often give both forms together, for example “five hundred and fifty million (550,000,000)”, so that a reader can check one against the other.

5 words · 26 letters · 550,000,000 = 550 × 1,000,000 (one million)

Five Hundred and Fifty Million in figures

To turn “five hundred and fifty million” back into digits, work group by group. Each group word (billion, million, thousand) marks a block of three digits. The result is 550,000,000, or 550000000 without separators.

Commas go after every third digit counting from the right: 550,000,000. In Britain and the United States this is the standard grouping; in much of Europe the same number appears as 550.000.000, and international scientific style uses spaces: 550 000 000.

How to write 550,000,000 on a cheque

Banks read the amount in words as the legal amount, so it must be exact. Write the pounds in words, add the word pounds, and finish with only so that nothing can be added afterwards.

• With pence: add the pence after the pounds – “Five hundred and fifty million pounds and fifty pence only” for £550,000,000.50 – or write the pence as a fraction, “Five hundred and fifty million pounds 50/100”.
• US check: “Five hundred fifty million and 00/100 dollars”. American cheques drop the “and” after the hundreds and put it before the cents.
• Bangladesh, India and Pakistan: the currency word comes first and the amount is counted in lakh and crore – “Taka fifty-five crore only”, with the figure written Tk. 55,00,00,000/=.

Read the full guide to writing a UK cheque or the guide to writing a cheque in Bangladesh for the layout, the date, and what to do if the words and figures disagree.

550,000,000 in British and American English

This is one of the numbers where the two spellings differ. British English keeps “and” after the hundreds; American English generally drops it.

Both are correct in their own country and both are understood everywhere. For a UK cheque, contract or exam, use the British form. See British vs American English numbers for the full comparison.

550,000,000 in lakh and crore (India, Bangladesh and Pakistan)

In India, Pakistan, Bangladesh and Nepal, large numbers are grouped differently. After the first thousand the digits are grouped in twos, and the units are lakh (100,000) and crore (10,000,000). So 550,000,000 becomes 55,00,00,000, read as “fifty-five crore” – or simply 55 crore.

On an Indian cheque or invoice the amount reads “Rupees fifty-five crore only”; in Bangladesh it is “Taka fifty-five crore only”. Our lakh and crore conversion guide explains the system in full.

Common mistakes when writing 550,000,000

• Dropping “and”. five hundred fifty million is American usage. In British English write five hundred and fifty million.
• Pluralising the group words. It is hundred, million, never “hundreds”, “thousands” or “millions” after a number.
• Using shorthand in formal documents. 550M is fine in a message, but a cheque or contract needs five hundred and fifty million or 550,000,000.
• Miscounting the zeros. 550,000,000 has 9 digits. Check the commas: every group between commas should have exactly three digits.

Other ways to write 550,000,000