556872 has 16 divisors (see below), whose sum is σ = 1392240. Its totient is φ = 185616.

The previous prime is 556867. The next prime is 556883. The reversal of 556872 is 278655.

It is a happy number.

556872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11578 + ... + 11625.

It is an arithmetic number, because the mean of its divisors is an integer number (87015).

2⁵⁵⁶⁸⁷² is an apocalyptic number.

It is an amenable number.

556872 is an abundant number, since it is smaller than the sum of its proper divisors (835368).

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

556872 is a wasteful number, since it uses less digits than its factorization.

556872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23212 (or 23208 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 556872 is about 746.2385677516. The cubic root of 556872 is about 82.2719505473.

The spelling of 556872 in words is "five hundred fifty-six thousand, eight hundred seventy-two".