57191872 has 28 divisors (see below), whose sum is σ = 113888520. Its totient is φ = 28495616.

The previous prime is 57191867. The next prime is 57191891. The reversal of 57191872 is 27819175.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18879 + ... + 21697.

Almost surely, 2^57191872 is an apocalyptic number.

It is an amenable number.

57191872 is a deficient number, since it is larger than the sum of its proper divisors (56696648).

57191872 is a wasteful number, since it uses less digits than its factorization.

57191872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148 (or 3138 counting only the distinct ones).

The product of its digits is 35280, while the sum is 40.

The square root of 57191872 is about 7562.5307933257. The cubic root of 57191872 is about 385.2814538324.

The spelling of 57191872 in words is "fifty-seven million, one hundred ninety-one thousand, eight hundred seventy-two".