557668252 has 6 divisors (see below), whose sum is σ = 975919448. Its totient is φ = 278834124.

The previous prime is 557668249. The next prime is 557668253. The reversal of 557668252 is 252866755.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557668253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69708528 + ... + 69708535.

Almost surely, 2^557668252 is an apocalyptic number.

It is an amenable number.

557668252 is a deficient number, since it is larger than the sum of its proper divisors (418251196).

557668252 is a wasteful number, since it uses less digits than its factorization.

557668252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139417067 (or 139417065 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 46.

The square root of 557668252 is about 23615.0005716705. Note that the first 3 decimals coincide. The cubic root of 557668252 is about 823.1114447749. Note that the first 3 decimals are identical.

The spelling of 557668252 in words is "five hundred fifty-seven million, six hundred sixty-eight thousand, two hundred fifty-two".