I have a check for $2500.00 written to me. The longhand is written "twenty-five hundred" instead of the standard "two thousand five hundred". Will the banks accept the check?
Both phrasings are idiomatically correct, and the banking system doesn't care which is used as long as it is correct.
Nobody cares about what's written there if you deposit it online or on a machine, I tested it once by writing "nothing" in the text field. Even a clerk will probably not even look there.
Only if there are complaints, a human will really look at the check, and humans will understand that term. No issue to be expected.