556521356 has 12 divisors (see below), whose sum is σ = 974130192. Its totient is φ = 278198448.

The previous prime is 556521353. The next prime is 556521373. The reversal of 556521356 is 653125655.

556521356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (556521353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8801 + ... + 34503.

It is an arithmetic number, because the mean of its divisors is an integer number (81177516).

Almost surely, 2^556521356 is an apocalyptic number.

It is an amenable number.

556521356 is a deficient number, since it is larger than the sum of its proper divisors (417608836).

556521356 is a wasteful number, since it uses less digits than its factorization.

556521356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31120 (or 31118 counting only the distinct ones).

The product of its digits is 135000, while the sum is 38.

The square root of 556521356 is about 23590.7048644164. The cubic root of 556521356 is about 822.5467894041.

The spelling of 556521356 in words is "five hundred fifty-six million, five hundred twenty-one thousand, three hundred fifty-six".