57855077556 has 24 divisors (see below), whose sum is σ = 135395769600. Its totient is φ = 19227798912.

The previous prime is 57855077543. The next prime is 57855077591. The reversal of 57855077556 is 65577055875.

It is a self number, because there is not a number n which added to its sum of digits gives 57855077556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7149156 + ... + 7157243.

It is an arithmetic number, because the mean of its divisors is an integer number (5641490400).

Almost surely, 2^57855077556 is an apocalyptic number.

It is an amenable number.

57855077556 is an abundant number, since it is smaller than the sum of its proper divisors (77540692044).

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

57855077556 is a wasteful number, since it uses less digits than its factorization.

57855077556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14306743 (or 14306741 counting only the distinct ones).

The product of its (nonzero) digits is 51450000, while the sum is 60.

The spelling of 57855077556 in words is "fifty-seven billion, eight hundred fifty-five million, seventy-seven thousand, five hundred fifty-six".