57133488 has 30 divisors (see below), whose sum is σ = 147730252. Its totient is φ = 19027040.

The previous prime is 57133477. The next prime is 57133493. The reversal of 57133488 is 88433175.

It is a super-2 number, since 2×57133488² = 6528470902092288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51823 + ... + 52913.

Almost surely, 2^57133488 is an apocalyptic number.

It is an amenable number.

57133488 is an abundant number, since it is smaller than the sum of its proper divisors (90596764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57133488 is an equidigital number, since it uses as much as digits as its factorization.

57133488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193 (or 1096 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 57133488 is about 7558.6697242306. The cubic root of 57133488 is about 385.1503050617.

The spelling of 57133488 in words is "fifty-seven million, one hundred thirty-three thousand, four hundred eighty-eight".