4557

4557 is a natural number that comes after 4556 and before 4558. It is an odd, composite integer.

Its prime factorization is 3 × 7^2 × 31, meaning it has 12 positive divisors: 1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, and 4557.

In base-10 arithmetic, 4557 is a Harshad number because it is divisible by the sum of its digits: 4+5+5+7 = 21, and 4557 ÷ 21 = 217. The quotient 217 factors further as 7 × 31, which aligns with the prime factorization above. The presence of 7^2 as a factor also makes 49 a divisor of 4557.

As a numeric label, 4557 may appear in catalogs, product model numbers, or other designations. On its own, it does not correspond to a widely recognized mathematical constant, theorem, or historical event.