57111924 has 12 divisors (see below), whose sum is σ = 133261184. Its totient is φ = 19037304.

The previous prime is 57111917. The next prime is 57111931. The reversal of 57111924 is 42911175.

It is an interprime number because it is at equal distance from previous prime (57111917) and next prime (57111931).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 57111891 and 57111900.

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, 2379652 + ... + 2379675.

Almost surely, 2^57111924 is an apocalyptic number.

It is an amenable number.

57111924 is an abundant number, since it is smaller than the sum of its proper divisors (76149260).

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

57111924 is a wasteful number, since it uses less digits than its factorization.

57111924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4759334 (or 4759332 counting only the distinct ones).

The product of its digits is 2520, while the sum is 30.

The square root of 57111924 is about 7557.2431481328. The cubic root of 57111924 is about 385.1018429624.

The spelling of 57111924 in words is "fifty-seven million, one hundred eleven thousand, nine hundred twenty-four".