56610655213 has 4 divisors (see below), whose sum is σ = 64697891680. Its totient is φ = 48523418748.

The previous prime is 56610655207. The next prime is 56610655219. The reversal of 56610655213 is 31255601665.

56610655213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (56610655207) and next prime (56610655219).

It is a de Polignac number, because none of the positive numbers 2^k-56610655213 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 (56610655219) 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, 4043618223 + ... + 4043618236.

It is an arithmetic number, because the mean of its divisors is an integer number (16174472920).

Almost surely, 2^56610655213 is an apocalyptic number.

It is an amenable number.

56610655213 is a deficient number, since it is larger than the sum of its proper divisors (8087236467).

56610655213 is an equidigital number, since it uses as much as digits as its factorization.

56610655213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8087236466.

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 56610655213 in words is "fifty-six billion, six hundred ten million, six hundred fifty-five thousand, two hundred thirteen".