Twenty-five team members competed in the tournament........what part of speech is the word Twenty-five?

Question

Twenty-five team members competed in the tournament........what part of speech is the word Twenty-five?

Answer 1

It is a noun.

Answer 2

Twenty five is the name of something - it is therefore a noun. But it also describes the verb - hown many team members competed? - 25. Therefore it is also an adverb describing the verb 'competed'.