56215713 has 8 divisors (see below), whose sum is σ = 76549248. Its totient is φ = 36679664.

The previous prime is 56215711. The next prime is 56215721. The reversal of 56215713 is 31751265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56215713 - 2¹ = 56215711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56215711) 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, 199206 + ... + 199487.

It is an arithmetic number, because the mean of its divisors is an integer number (9568656).

Almost surely, 2^56215713 is an apocalyptic number.

It is an amenable number.

56215713 is a deficient number, since it is larger than the sum of its proper divisors (20333535).

56215713 is a wasteful number, since it uses less digits than its factorization.

56215713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398743.

The product of its digits is 6300, while the sum is 30.

The square root of 56215713 is about 7497.7138515684. The cubic root of 56215713 is about 383.0768501469.

Adding to 56215713 its reverse (31751265), we get a palindrome (87966978).

The spelling of 56215713 in words is "fifty-six million, two hundred fifteen thousand, seven hundred thirteen".