56946913 has 4 divisors (see below), whose sum is σ = 57667840. Its totient is φ = 56225988.

The previous prime is 56946893. The next prime is 56946961. The reversal of 56946913 is 31964965.

56946913 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56946913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56946913.

It is not an unprimeable number, because it can be changed into a prime (56946973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360345 + ... + 360502.

It is an arithmetic number, because the mean of its divisors is an integer number (14416960).

Almost surely, 2^56946913 is an apocalyptic number.

It is an amenable number.

56946913 is a deficient number, since it is larger than the sum of its proper divisors (720927).

56946913 is an equidigital number, since it uses as much as digits as its factorization.

56946913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720926.

The product of its digits is 174960, while the sum is 43.

The square root of 56946913 is about 7546.3178438229. The cubic root of 56946913 is about 384.7305991867.

The spelling of 56946913 in words is "fifty-six million, nine hundred forty-six thousand, nine hundred thirteen".