How do you spell 55 dollars?

There are a few ways to spell 55 dollars, depending on the context:

Formal:

* Fifty-five dollars

* $55

Informal:

* Fifty-five bucks

* 55 bucks

The best way to spell it depends on the situation. In formal writing, it's best to use "fifty-five dollars" or "$55." In informal conversation, "fifty-five bucks" is acceptable.