556988 has 12 divisors (see below), whose sum is σ = 1032192. Its totient is φ = 262080.

The previous prime is 556987. The next prime is 556999. The reversal of 556988 is 889655.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 556988.

It is not an unprimeable number, because it can be changed into a prime (556981) 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, 4028 + ... + 4163.

It is an arithmetic number, because the mean of its divisors is an integer number (86016).

2⁵⁵⁶⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

556988 is a deficient number, since it is larger than the sum of its proper divisors (475204).

556988 is a wasteful number, since it uses less digits than its factorization.

556988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8212 (or 8210 counting only the distinct ones).

The product of its digits is 86400, while the sum is 41.

The square root of 556988 is about 746.3162868382. The cubic root of 556988 is about 82.2776627419.

The spelling of 556988 in words is "five hundred fifty-six thousand, nine hundred eighty-eight".