557504642 has 16 divisors (see below), whose sum is σ = 866696760. Its totient is φ = 268641408.

The previous prime is 557504639. The next prime is 557504653. The reversal of 557504642 is 246405755.

It can be written as a sum of positive squares in 4 ways, for example, as 202521361 + 354983281 = 14231^2 + 18841^2 .

It is a super-2 number, since 2×557504642² = 621622851703096328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 557504596 and 557504605.

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, 23678 + ... + 40934.

Almost surely, 2^557504642 is an apocalyptic number.

557504642 is a deficient number, since it is larger than the sum of its proper divisors (309192118).

557504642 is a wasteful number, since it uses less digits than its factorization.

557504642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17845.

The product of its (nonzero) digits is 168000, while the sum is 38.

The square root of 557504642 is about 23611.5362058465. The cubic root of 557504642 is about 823.0309414559.

The spelling of 557504642 in words is "five hundred fifty-seven million, five hundred four thousand, six hundred forty-two".