57056988 has 24 divisors (see below), whose sum is σ = 137428480. Its totient is φ = 18405360.

The previous prime is 57056983. The next prime is 57057041. The reversal of 57056988 is 88965075.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57056983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76318 + ... + 77061.

Almost surely, 2^57056988 is an apocalyptic number.

It is an amenable number.

57056988 is an abundant number, since it is smaller than the sum of its proper divisors (80371492).

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

57056988 is a wasteful number, since it uses less digits than its factorization.

57056988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153417 (or 153415 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The square root of 57056988 is about 7553.6076149083. The cubic root of 57056988 is about 384.9783267723.

The spelling of 57056988 in words is "fifty-seven million, fifty-six thousand, nine hundred eighty-eight".