557808 has 20 divisors (see below), whose sum is σ = 1441128. Its totient is φ = 185920.

The previous prime is 557803. The next prime is 557831. The reversal of 557808 is 808755.

It is a super-2 number, since 2×557808² = 622299529728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5763 + ... + 5858.

2⁵⁵⁷⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

557808 is an abundant number, since it is smaller than the sum of its proper divisors (883320).

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

557808 is a wasteful number, since it uses less digits than its factorization.

557808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11632 (or 11626 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 557808 is about 746.8654497297. The cubic root of 557808 is about 82.3180194473.

The spelling of 557808 in words is "five hundred fifty-seven thousand, eight hundred eight".