56156750777 has 8 divisors (see below), whose sum is σ = 61067119176. Its totient is φ = 51424941312.

The previous prime is 56156750761. The next prime is 56156750779. The reversal of 56156750777 is 77705765165.

It can be written as a sum of positive squares in 4 ways, for example, as 27060579001 + 29096171776 = 164501^2 + 170576^2 .

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 56156750777 - 2⁴ = 56156750761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56156750779) 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, 44639078 + ... + 44640335.

It is an arithmetic number, because the mean of its divisors is an integer number (7633389897).

Almost surely, 2^56156750777 is an apocalyptic number.

It is an amenable number.

56156750777 is a deficient number, since it is larger than the sum of its proper divisors (4910368399).

56156750777 is a wasteful number, since it uses less digits than its factorization.

56156750777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89279467.

The product of its (nonzero) digits is 10804500, while the sum is 56.

The spelling of 56156750777 in words is "fifty-six billion, one hundred fifty-six million, seven hundred fifty thousand, seven hundred seventy-seven".