557237868 has 24 divisors (see below), whose sum is σ = 1418424000. Its totient is φ = 168859920.

The previous prime is 557237843. The next prime is 557237869. The reversal of 557237868 is 868732755.

It is a self number, because there is not a number n which added to its sum of digits gives 557237868.

It is not an unprimeable number, because it can be changed into a prime (557237869) 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, 2110618 + ... + 2110881.

It is an arithmetic number, because the mean of its divisors is an integer number (59101000).

Almost surely, 2^557237868 is an apocalyptic number.

It is an amenable number.

557237868 is an abundant number, since it is smaller than the sum of its proper divisors (861186132).

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

557237868 is a wasteful number, since it uses less digits than its factorization.

557237868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221517 (or 4221515 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 51.

The square root of 557237868 is about 23605.8862998194. The cubic root of 557237868 is about 822.8996431249.

The spelling of 557237868 in words is "five hundred fifty-seven million, two hundred thirty-seven thousand, eight hundred sixty-eight".