556555044 has 36 divisors (see below), whose sum is σ = 1379520464. Its totient is φ = 174604416.

The previous prime is 556555031. The next prime is 556555093. The reversal of 556555044 is 440555655.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 556554993 and 556555011.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76774 + ... + 83709.

Almost surely, 2^556555044 is an apocalyptic number.

It is an amenable number.

556555044 is an abundant number, since it is smaller than the sum of its proper divisors (822965420).

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

556555044 is a wasteful number, since it uses less digits than its factorization.

556555044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160524 (or 160505 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 39.

The square root of 556555044 is about 23591.4188636462. The cubic root of 556555044 is about 822.5633861899.

The spelling of 556555044 in words is "five hundred fifty-six million, five hundred fifty-five thousand, forty-four".