56150105561 has 8 divisors (see below), whose sum is σ = 61471111584. Its totient is φ = 50865174720.

The previous prime is 56150105549. The next prime is 56150105567. The reversal of 56150105561 is 16550105165.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56150105561 is a prime.

It is a super-2 number, since 2×56150105561² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56150105567) 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, 9015536 + ... + 9021761.

It is an arithmetic number, because the mean of its divisors is an integer number (7683888948).

Almost surely, 2^56150105561 is an apocalyptic number.

It is an amenable number.

56150105561 is a deficient number, since it is larger than the sum of its proper divisors (5321006023).

56150105561 is a wasteful number, since it uses less digits than its factorization.

56150105561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18037591.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 56150105561 in words is "fifty-six billion, one hundred fifty million, one hundred five thousand, five hundred sixty-one".