56006105556 has 24 divisors (see below), whose sum is σ = 130693530240. Its totient is φ = 18666899392.

The previous prime is 56006105543. The next prime is 56006105563. The reversal of 56006105556 is 65550160065.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92721 + ... + 347288.

It is an arithmetic number, because the mean of its divisors is an integer number (5445563760).

Almost surely, 2^56006105556 is an apocalyptic number.

It is an amenable number.

56006105556 is an abundant number, since it is smaller than the sum of its proper divisors (74687424684).

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

56006105556 is a wasteful number, since it uses less digits than its factorization.

56006105556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450623 (or 450621 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 56006105556 in words is "fifty-six billion, six million, one hundred five thousand, five hundred fifty-six".