57816552 has 16 divisors (see below), whose sum is σ = 144541440. Its totient is φ = 19272176.

The previous prime is 57816529. The next prime is 57816611. The reversal of 57816552 is 25561875.

It is a self number, because there is not a number n which added to its sum of digits gives 57816552.

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, 1204488 + ... + 1204535.

It is an arithmetic number, because the mean of its divisors is an integer number (9033840).

Almost surely, 2^57816552 is an apocalyptic number.

It is an amenable number.

57816552 is an abundant number, since it is smaller than the sum of its proper divisors (86724888).

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

57816552 is a wasteful number, since it uses less digits than its factorization.

57816552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409032 (or 2409028 counting only the distinct ones).

The product of its digits is 84000, while the sum is 39.

The square root of 57816552 is about 7603.7196160826. The cubic root of 57816552 is about 386.6791269601.

The spelling of 57816552 in words is "fifty-seven million, eight hundred sixteen thousand, five hundred fifty-two".