556688972 has 36 divisors (see below), whose sum is σ = 1125087600. Its totient is φ = 236097600.

The previous prime is 556688969. The next prime is 556688981. The reversal of 556688972 is 279886655.

It is a super-2 number, since 2×556688972² = 619805223092833568, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284654 + ... + 286602.

Almost surely, 2^556688972 is an apocalyptic number.

It is an amenable number.

556688972 is an abundant number, since it is smaller than the sum of its proper divisors (568398628).

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

556688972 is a wasteful number, since it uses less digits than its factorization.

556688972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162 (or 2059 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 56.

The square root of 556688972 is about 23594.2571826281. The cubic root of 556688972 is about 822.6293607567.

The spelling of 556688972 in words is "five hundred fifty-six million, six hundred eighty-eight thousand, nine hundred seventy-two".