556056 has 24 divisors (see below), whose sum is σ = 1506180. Its totient is φ = 185328.

The previous prime is 556051. The next prime is 556067. The reversal of 556056 is 650655.

556056 is a `hidden beast` number, since 55 + 605 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556051) by changing a digit.

556056 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3790 + ... + 3933.

2⁵⁵⁶⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

556056 is an abundant number, since it is smaller than the sum of its proper divisors (950124).

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

556056 is a wasteful number, since it uses less digits than its factorization.

556056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735 (or 7728 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 556056 is about 745.6916252715. The cubic root of 556056 is about 82.2317457789.

It can be divided in two parts, 55605 and 6, that added together give a triangular number (55611 = T₃₃₃).

The spelling of 556056 in words is "five hundred fifty-six thousand, fifty-six".