556491712 has 28 divisors (see below), whose sum is σ = 1262044720. Its totient is φ = 238496256.

The previous prime is 556491709. The next prime is 556491731. The reversal of 556491712 is 217194655.

It is a tau number, because it is divible by the number of its divisors (28).

It is a zygodrome in base 15.

It is a congruent number.

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, 620637 + ... + 621532.

Almost surely, 2^556491712 is an apocalyptic number.

It is an amenable number.

556491712 is an abundant number, since it is smaller than the sum of its proper divisors (705553008).

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

556491712 is a wasteful number, since it uses less digits than its factorization.

556491712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242188 (or 1242178 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 556491712 is about 23590.0765577393. The cubic root of 556491712 is about 822.5321843881.

The spelling of 556491712 in words is "five hundred fifty-six million, four hundred ninety-one thousand, seven hundred twelve".