57163086 has 24 divisors (see below), whose sum is σ = 124126704. Its totient is φ = 19012320.

The previous prime is 57163069. The next prime is 57163091. The reversal of 57163086 is 68036175.

57163086 is a `hidden beast` number, since 571 + 6 + 3 + 0 + 86 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 57163086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5506 + ... + 12026.

It is an arithmetic number, because the mean of its divisors is an integer number (5171946).

Almost surely, 2^57163086 is an apocalyptic number.

57163086 is an abundant number, since it is smaller than the sum of its proper divisors (66963618).

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

57163086 is a wasteful number, since it uses less digits than its factorization.

57163086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7016 (or 7013 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 57163086 is about 7560.6273549223. The cubic root of 57163086 is about 385.2168026107.

The spelling of 57163086 in words is "fifty-seven million, one hundred sixty-three thousand, eighty-six".