("Twenty five" and "twenty three" should be hyphenated.) Read more about hyphens and dashes between numbers.

Do you hyphenate twenty third?

You should always hyphenate numbers when you are describing compound numbers between 21 and 99 (except 30, 40, 50, 60, 70, 80 and 90). A compound number is any number that consists of two words; for example, eighty-eight, twenty-two, forty-nine. Numbers higher than 99 do not need a hyphen.

Should you hyphenate numbers?

Always hyphenate the numbers 21 to 99 when writing them out as words: I have twenty-one pairs of novelty socks. ... However, it's only 21 to 99 that we hyphenate in these large numbers. Larger round numbers, such as “one hundred,” do not require a hyphen.