557818144 has 48 divisors (see below), whose sum is σ = 1252267128. Its totient is φ = 242307072.

The previous prime is 557818109. The next prime is 557818189. The reversal of 557818144 is 441818755.

It can be written as a sum of positive squares in 4 ways, for example, as 423536400 + 134281744 = 20580^2 + 11588^2 .

It is a super-2 number, since 2×557818144² = 622322163551209472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 557818144.

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, 32367 + ... + 46510.

Almost surely, 2^557818144 is an apocalyptic number.

It is an amenable number.

557818144 is an abundant number, since it is smaller than the sum of its proper divisors (694448984).

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

557818144 is a wasteful number, since it uses less digits than its factorization.

557818144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78917 (or 78909 counting only the distinct ones).

The product of its digits is 179200, while the sum is 43.

The square root of 557818144 is about 23618.1740191743. The cubic root of 557818144 is about 823.1851844148.

The spelling of 557818144 in words is "five hundred fifty-seven million, eight hundred eighteen thousand, one hundred forty-four".