57133884 has 24 divisors (see below), whose sum is σ = 133555968. Its totient is φ = 19009840.

The previous prime is 57133877. The next prime is 57133891. The reversal of 57133884 is 48833175.

It is an interprime number because it is at equal distance from previous prime (57133877) and next prime (57133891).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2989 + ... + 11099.

It is an arithmetic number, because the mean of its divisors is an integer number (5564832).

Almost surely, 2^57133884 is an apocalyptic number.

It is an amenable number.

57133884 is an abundant number, since it is smaller than the sum of its proper divisors (76422084).

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

57133884 is a wasteful number, since it uses less digits than its factorization.

57133884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8705 (or 8703 counting only the distinct ones).

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

The square root of 57133884 is about 7558.6959192707. The cubic root of 57133884 is about 385.1511949027.

The spelling of 57133884 in words is "fifty-seven million, one hundred thirty-three thousand, eight hundred eighty-four".