556981132 has 12 divisors (see below), whose sum is σ = 1032053400. Its totient is φ = 262108736.

The previous prime is 556981127. The next prime is 556981157. The reversal of 556981132 is 231189655.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4095382 + ... + 4095517.

It is an arithmetic number, because the mean of its divisors is an integer number (86004450).

Almost surely, 2^556981132 is an apocalyptic number.

It is an amenable number.

556981132 is a deficient number, since it is larger than the sum of its proper divisors (475072268).

556981132 is a wasteful number, since it uses less digits than its factorization.

556981132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8190920 (or 8190918 counting only the distinct ones).

The product of its digits is 64800, while the sum is 40.

The square root of 556981132 is about 23600.4477076178. The cubic root of 556981132 is about 822.7732456269.

The spelling of 556981132 in words is "five hundred fifty-six million, nine hundred eighty-one thousand, one hundred thirty-two".