56056000561 has 32 divisors (see below), whose sum is σ = 66418974720. Its totient is φ = 46762790400.

The previous prime is 56056000547. The next prime is 56056000577. The reversal of 56056000561 is 16500065065.

It is a cyclic number.

It is not a de Polignac number, because 56056000561 - 2⁷ = 56056000433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56056000501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 923416 + ... + 982246.

It is an arithmetic number, because the mean of its divisors is an integer number (2075592960).

Almost surely, 2^56056000561 is an apocalyptic number.

It is an amenable number.

56056000561 is a deficient number, since it is larger than the sum of its proper divisors (10362974159).

56056000561 is a wasteful number, since it uses less digits than its factorization.

56056000561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59005.

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 56056000561 in words is "fifty-six billion, fifty-six million, five hundred sixty-one", and thus it is an aban number.