555556056 has 64 divisors (see below), whose sum is σ = 1604292480. Its totient is φ = 158446080.

The previous prime is 555556033. The next prime is 555556081. The reversal of 555556056 is 650655555.

It is a junction number, because it is equal to n+sod(n) for n = 555555999 and 555556017.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 57406 + ... + 66381.

It is an arithmetic number, because the mean of its divisors is an integer number (25067070).

Almost surely, 2^555556056 is an apocalyptic number.

It is an amenable number.

555556056 is an abundant number, since it is smaller than the sum of its proper divisors (1048736424).

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

555556056 is a wasteful number, since it uses less digits than its factorization.

555556056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123824 (or 123820 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 42.

The square root of 555556056 is about 23570.2366555790. The cubic root of 555556056 is about 822.0709382838.

It can be divided in two parts, 55 and 5556056, that added together give a triangular number (5556111 = T₃₃₃₃).

The spelling of 555556056 in words is "five hundred fifty-five million, five hundred fifty-six thousand, fifty-six".