656056513 has 8 divisors (see below), whose sum is σ = 750640832. Its totient is φ = 561687696.

The previous prime is 656056487. The next prime is 656056517. The reversal of 656056513 is 315650656.

It is a happy number.

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-656056513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656056517) 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, 47295 + ... + 59572.

It is an arithmetic number, because the mean of its divisors is an integer number (93830104).

Almost surely, 2^656056513 is an apocalyptic number.

It is an amenable number.

656056513 is a deficient number, since it is larger than the sum of its proper divisors (94584319).

656056513 is a wasteful number, since it uses less digits than its factorization.

656056513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107751.

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 656056513 is about 25613.6001569479. The cubic root of 656056513 is about 868.9212476245.

The spelling of 656056513 in words is "six hundred fifty-six million, fifty-six thousand, five hundred thirteen".