56545559005 has 16 divisors (see below), whose sum is σ = 73093189680. Its totient is φ = 41745904128.

The previous prime is 56545558981. The next prime is 56545559023. The reversal of 56545559005 is 50095554565.

It can be written as a sum of positive squares in 8 ways, for example, as 15700340601 + 40845218404 = 125301^2 + 202102^2 .

It is a cyclic number.

It is not a de Polignac number, because 56545559005 - 2⁵ = 56545558973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56545559005.

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 15 ways as a sum of consecutive naturals, for example, 144679 + ... + 366091.

It is an arithmetic number, because the mean of its divisors is an integer number (4568324355).

Almost surely, 2^56545559005 is an apocalyptic number.

It is an amenable number.

56545559005 is a deficient number, since it is larger than the sum of its proper divisors (16547630675).

56545559005 is a wasteful number, since it uses less digits than its factorization.

56545559005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225360.

The product of its (nonzero) digits is 3375000, while the sum is 49.

The spelling of 56545559005 in words is "fifty-six billion, five hundred forty-five million, five hundred fifty-nine thousand, five".