56560016509 has 8 divisors (see below), whose sum is σ = 56740605152. Its totient is φ = 56379583440.

The previous prime is 56560016501. The next prime is 56560016561. The reversal of 56560016509 is 90561006565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56560016509 - 2³ = 56560016501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56560016501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712402 + ... + 787804.

It is an arithmetic number, because the mean of its divisors is an integer number (7092575644).

Almost surely, 2^56560016509 is an apocalyptic number.

It is an amenable number.

56560016509 is a deficient number, since it is larger than the sum of its proper divisors (180588643).

56560016509 is a wasteful number, since it uses less digits than its factorization.

56560016509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77787.

The product of its (nonzero) digits is 243000, while the sum is 43.

The spelling of 56560016509 in words is "fifty-six billion, five hundred sixty million, sixteen thousand, five hundred nine".