56911715 has 16 divisors (see below), whose sum is σ = 78555072. Its totient is φ = 38772864.

The previous prime is 56911709. The next prime is 56911727. The reversal of 56911715 is 51711965.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56911715 - 2²⁴ = 40134499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317 + ... + 10673.

It is an arithmetic number, because the mean of its divisors is an integer number (4909692).

Almost surely, 2^56911715 is an apocalyptic number.

56911715 is a deficient number, since it is larger than the sum of its proper divisors (21643357).

56911715 is a wasteful number, since it uses less digits than its factorization.

56911715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10526.

The product of its digits is 9450, while the sum is 35.

The square root of 56911715 is about 7543.9853525839. The cubic root of 56911715 is about 384.6513175198.

The spelling of 56911715 in words is "fifty-six million, nine hundred eleven thousand, seven hundred fifteen".