556526628 has 36 divisors (see below), whose sum is σ = 1607744320. Its totient is φ = 159007536.

The previous prime is 556526627. The next prime is 556526651. The reversal of 556526628 is 826625655.

556526628 is a `hidden beast` number, since 5 + 565 + 2 + 66 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (556526627) by changing a digit.

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, 1103968 + ... + 1104471.

Almost surely, 2^556526628 is an apocalyptic number.

It is an amenable number.

556526628 is an abundant number, since it is smaller than the sum of its proper divisors (1051217692).

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

556526628 is a wasteful number, since it uses less digits than its factorization.

556526628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208456 (or 2208451 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The square root of 556526628 is about 23590.8166030767. The cubic root of 556526628 is about 822.5493867605.

The spelling of 556526628 in words is "five hundred fifty-six million, five hundred twenty-six thousand, six hundred twenty-eight".