556825644 has 48 divisors (see below), whose sum is σ = 1445656800. Its totient is φ = 185347008.

The previous prime is 556825639. The next prime is 556825673. The reversal of 556825644 is 446528655.

556825644 is a `hidden beast` number, since 5 + 5 + 6 + 82 + 564 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 556825644.

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, 82842 + ... + 89310.

It is an arithmetic number, because the mean of its divisors is an integer number (30117850).

Almost surely, 2^556825644 is an apocalyptic number.

556825644 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

556825644 is an abundant number, since it is smaller than the sum of its proper divisors (888831156).

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

556825644 is a wasteful number, since it uses less digits than its factorization.

556825644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7279 (or 7271 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The square root of 556825644 is about 23597.1533028880. The cubic root of 556825644 is about 822.6966761434.

The spelling of 556825644 in words is "five hundred fifty-six million, eight hundred twenty-five thousand, six hundred forty-four".