XXIV vs twenty-four

XXIV and twenty-four both are nouns.

Word	Noun	Adjective	Verb	Adverb
XXIV	Yes	No	No	No
twenty-four	Yes	Yes	No	No

As nouns, XXIV and twenty-four are synonyms defined as:

XXIV and twenty-four: the cardinal number that is the sum of twenty-three and one

Other synonyms of XXIV include 24, two dozen.

XXIV (noun)	twenty-four (noun)
the cardinal number that is the sum of twenty-three and one	the cardinal number that is the sum of twenty-three and one

XXIV (adjective)	twenty-four (adjective)
	being four more than twenty