56720395 has 4 divisors (see below), whose sum is σ = 68064480. Its totient is φ = 45376312.

The previous prime is 56720357. The next prime is 56720401. The reversal of 56720395 is 59302765.

56720395 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.

It is a cyclic number.

It is not a de Polignac number, because 56720395 - 2²⁵ = 23165963 is a prime.

It is an unprimeable number.

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, 5672035 + ... + 5672044.

It is an arithmetic number, because the mean of its divisors is an integer number (17016120).

Almost surely, 2^56720395 is an apocalyptic number.

56720395 is a deficient number, since it is larger than the sum of its proper divisors (11344085).

56720395 is a wasteful number, since it uses less digits than its factorization.

56720395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11344084.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 56720395 is about 7531.2943774626. The cubic root of 56720395 is about 384.2198064296.

The spelling of 56720395 in words is "fifty-six million, seven hundred twenty thousand, three hundred ninety-five".