57117688 has 32 divisors (see below), whose sum is σ = 113767200. Its totient is φ = 26790912.

The previous prime is 57117679. The next prime is 57117719. The reversal of 57117688 is 88671175.

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, 61693 + ... + 62611.

It is an arithmetic number, because the mean of its divisors is an integer number (3555225).

Almost surely, 2^57117688 is an apocalyptic number.

It is an amenable number.

57117688 is a deficient number, since it is larger than the sum of its proper divisors (56649512).

57117688 is a wasteful number, since it uses less digits than its factorization.

57117688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399 (or 1395 counting only the distinct ones).

The product of its digits is 94080, while the sum is 43.

The square root of 57117688 is about 7557.6244945088. The cubic root of 57117688 is about 385.1147979474.

The spelling of 57117688 in words is "fifty-seven million, one hundred seventeen thousand, six hundred eighty-eight".