557616858 has 16 divisors (see below), whose sum is σ = 1115476320. Its totient is φ = 185831856.

The previous prime is 557616823. The next prime is 557616863. The reversal of 557616858 is 858616755.

557616858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 557616858.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35841 + ... + 48987.

It is an arithmetic number, because the mean of its divisors is an integer number (69717270).

Almost surely, 2^557616858 is an apocalyptic number.

557616858 is an abundant number, since it is smaller than the sum of its proper divisors (557859462).

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

557616858 is a wasteful number, since it uses less digits than its factorization.

557616858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20221.

The product of its digits is 2016000, while the sum is 51.

The square root of 557616858 is about 23613.9123823224. The cubic root of 557616858 is about 823.0861583619.

The spelling of 557616858 in words is "five hundred fifty-seven million, six hundred sixteen thousand, eight hundred fifty-eight".