557797478 has 24 divisors (see below), whose sum is σ = 1024529400. Its totient is φ = 226473408.

The previous prime is 557797451. The next prime is 557797507. The reversal of 557797478 is 874797755.

It is a super-2 number, since 2×557797478² = 622276052926320968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

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, 147923 + ... + 151646.

It is an arithmetic number, because the mean of its divisors is an integer number (42688725).

Almost surely, 2^557797478 is an apocalyptic number.

557797478 is a deficient number, since it is larger than the sum of its proper divisors (466731922).

557797478 is a wasteful number, since it uses less digits than its factorization.

557797478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299604 (or 299597 counting only the distinct ones).

The product of its digits is 17287200, while the sum is 59.

The square root of 557797478 is about 23617.7365130531. The cubic root of 557797478 is about 823.1750185240.

The spelling of 557797478 in words is "five hundred fifty-seven million, seven hundred ninety-seven thousand, four hundred seventy-eight".