556031812 has 48 divisors (see below), whose sum is σ = 1154160000. Its totient is φ = 234226272.

The previous prime is 556031809. The next prime is 556031837. The reversal of 556031812 is 218130655.

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, 77514 + ... + 84382.

It is an arithmetic number, because the mean of its divisors is an integer number (24045000).

Almost surely, 2^556031812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556031812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (577080000).

556031812 is an abundant number, since it is smaller than the sum of its proper divisors (598128188).

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

556031812 is a wasteful number, since it uses less digits than its factorization.

556031812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6953 (or 6937 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 556031812 is about 23580.3268001103. The cubic root of 556031812 is about 822.3055342278.

The spelling of 556031812 in words is "five hundred fifty-six million, thirty-one thousand, eight hundred twelve".