57456528 has 20 divisors (see below), whose sum is σ = 148429488. Its totient is φ = 19152160.

The previous prime is 57456499. The next prime is 57456533. The reversal of 57456528 is 82565475.

It is a self number, because there is not a number n which added to its sum of digits gives 57456528.

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, 598458 + ... + 598553.

Almost surely, 2^57456528 is an apocalyptic number.

It is an amenable number.

57456528 is an abundant number, since it is smaller than the sum of its proper divisors (90972960).

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

57456528 is a wasteful number, since it uses less digits than its factorization.

57456528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197022 (or 1197016 counting only the distinct ones).

The product of its digits is 336000, while the sum is 42.

The square root of 57456528 is about 7580.0084432671. The cubic root of 57456528 is about 385.8748374926.

The spelling of 57456528 in words is "fifty-seven million, four hundred fifty-six thousand, five hundred twenty-eight".