57133860 has 48 divisors (see below), whose sum is σ = 182829696. Its totient is φ = 13059072.

The previous prime is 57133849. The next prime is 57133877. The reversal of 57133860 is 6833175.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67597 + ... + 68436.

It is an arithmetic number, because the mean of its divisors is an integer number (3808952).

Almost surely, 2^57133860 is an apocalyptic number.

It is an amenable number.

57133860 is an abundant number, since it is smaller than the sum of its proper divisors (125695836).

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

57133860 is a wasteful number, since it uses less digits than its factorization.

57133860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136052 (or 136050 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 57133860 is about 7558.6943316951. The cubic root of 57133860 is about 385.1511409731.

The spelling of 57133860 in words is "fifty-seven million, one hundred thirty-three thousand, eight hundred sixty".