556563720 has 64 divisors (see below), whose sum is σ = 1671431040. Its totient is φ = 148262400.

The previous prime is 556563719. The next prime is 556563743. The reversal of 556563720 is 27365655.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156765 + ... + 160275.

It is an arithmetic number, because the mean of its divisors is an integer number (26116110).

Almost surely, 2^556563720 is an apocalyptic number.

It is an amenable number.

556563720 is an abundant number, since it is smaller than the sum of its proper divisors (1114867320).

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

556563720 is a wasteful number, since it uses less digits than its factorization.

556563720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4846 (or 4842 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 39.

The square root of 556563720 is about 23591.6027433492. The cubic root of 556563720 is about 822.5676604139.

The spelling of 556563720 in words is "five hundred fifty-six million, five hundred sixty-three thousand, seven hundred twenty".