54 is a composite number.
A composite number is a positive integer that has at least one positive divisor other than one or itself. In simpler terms, it means that the number can be divided evenly by numbers other than just 1 and itself.
In the case of 54, it can be divided evenly by 1, 2, 3, 6, 9, 18, and 27, in addition to 54. For example, 54 divided by 2 equals 27, and 54 divided by 3 equals 18. Since it has divisors other than 1 and 54, we classify it as a composite number.