557911168 has 32 divisors (see below), whose sum is σ = 1176848460. Its totient is φ = 262545408.

The previous prime is 557911157. The next prime is 557911213. The reversal of 557911168 is 861119755.

It can be written as a sum of positive squares in 2 ways, for example, as 527529024 + 30382144 = 22968^2 + 5512^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×557911168² = 622529742758248448, which contains 22 as substring.

It is an unprimeable number.

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, 126021 + ... + 130372.

Almost surely, 2^557911168 is an apocalyptic number.

It is an amenable number.

557911168 is an abundant number, since it is smaller than the sum of its proper divisors (618937292).

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

557911168 is a wasteful number, since it uses less digits than its factorization.

557911168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256424 (or 256412 counting only the distinct ones).

The product of its digits is 75600, while the sum is 43.

The square root of 557911168 is about 23620.1432679821. The cubic root of 557911168 is about 823.2309410968.

The spelling of 557911168 in words is "five hundred fifty-seven million, nine hundred eleven thousand, one hundred sixty-eight".