556644552 has 16 divisors (see below), whose sum is σ = 1391611440. Its totient is φ = 185548176.

The previous prime is 556644533. The next prime is 556644553. The reversal of 556644552 is 255446655.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (556644553) 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 3 ways as a sum of consecutive naturals, for example, 11596738 + ... + 11596785.

It is an arithmetic number, because the mean of its divisors is an integer number (86975715).

Almost surely, 2^556644552 is an apocalyptic number.

It is an amenable number.

556644552 is an abundant number, since it is smaller than the sum of its proper divisors (834966888).

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

556644552 is a wasteful number, since it uses less digits than its factorization.

556644552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23193532 (or 23193528 counting only the distinct ones).

The product of its digits is 720000, while the sum is 42.

The square root of 556644552 is about 23593.3158330914. The cubic root of 556644552 is about 822.6074800956.

The spelling of 556644552 in words is "five hundred fifty-six million, six hundred forty-four thousand, five hundred fifty-two".