656276051 has 4 divisors (see below), whose sum is σ = 668658672. Its totient is φ = 643893432.

The previous prime is 656276011. The next prime is 656276063. The reversal of 656276051 is 150672656.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 656276051 - 2⁶ = 656275987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 656275996 and 656276014.

It is not an unprimeable number, because it can be changed into a prime (656276011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6191231 + ... + 6191336.

It is an arithmetic number, because the mean of its divisors is an integer number (167164668).

Almost surely, 2^656276051 is an apocalyptic number.

656276051 is a deficient number, since it is larger than the sum of its proper divisors (12382621).

656276051 is a wasteful number, since it uses less digits than its factorization.

656276051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12382620.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 656276051 is about 25617.8853733090. The cubic root of 656276051 is about 869.0181599863.

The spelling of 656276051 in words is "six hundred fifty-six million, two hundred seventy-six thousand, fifty-one".