556456 has 8 divisors (see below), whose sum is σ = 1043370. Its totient is φ = 278224.

The previous prime is 556441. The next prime is 556459. The reversal of 556456 is 654655.

556456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 422500 + 133956 = 650^2 + 366^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (556459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34771 + ... + 34786.

2⁵⁵⁶⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

556456 is a deficient number, since it is larger than the sum of its proper divisors (486914).

556456 is a wasteful number, since it uses less digits than its factorization.

556456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69563 (or 69559 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 556456 is about 745.9597844388. The cubic root of 556456 is about 82.2514589099.

The spelling of 556456 in words is "five hundred fifty-six thousand, four hundred fifty-six".