57557412 has 48 divisors (see below), whose sum is σ = 162792000. Its totient is φ = 17441280.

The previous prime is 57557407. The next prime is 57557447. The reversal of 57557412 is 21475575.

57557412 is a `hidden beast` number, since 5 + 75 + 574 + 12 = 666.

It is a super-2 number, since 2×57557412² = 6625711352275488, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 23037 + ... + 25412.

It is an arithmetic number, because the mean of its divisors is an integer number (3391500).

Almost surely, 2^57557412 is an apocalyptic number.

It is an amenable number.

57557412 is an abundant number, since it is smaller than the sum of its proper divisors (105234588).

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

57557412 is a wasteful number, since it uses less digits than its factorization.

57557412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48473 (or 48465 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 57557412 is about 7586.6601347365. The cubic root of 57557412 is about 386.1005492126.

The spelling of 57557412 in words is "fifty-seven million, five hundred fifty-seven thousand, four hundred twelve".