557990955 has 24 divisors (see below), whose sum is σ = 1018090320. Its totient is φ = 281931840.

The previous prime is 557990933. The next prime is 557990981. The reversal of 557990955 is 559099755.

It is a happy number.

It is not a de Polignac number, because 557990955 - 2²² = 553796651 is a prime.

It is a super-2 number, since 2×557990955² = 622707811723624050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325456 + ... + 327165.

It is an arithmetic number, because the mean of its divisors is an integer number (42420430).

Almost surely, 2^557990955 is an apocalyptic number.

557990955 is a deficient number, since it is larger than the sum of its proper divisors (460099365).

557990955 is a wasteful number, since it uses less digits than its factorization.

557990955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652651 (or 652648 counting only the distinct ones).

The product of its (nonzero) digits is 3189375, while the sum is 54.

The square root of 557990955 is about 23621.8321685681. The cubic root of 557990955 is about 823.2701827061.

The spelling of 557990955 in words is "five hundred fifty-seven million, nine hundred ninety thousand, nine hundred fifty-five".