56815367 has 4 divisors (see below), whose sum is σ = 64931856. Its totient is φ = 48698880.

The previous prime is 56815307. The next prime is 56815393. The reversal of 56815367 is 76351865.

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 56815367 - 2⁶ = 56815303 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 (56815307) 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, 4058234 + ... + 4058247.

It is an arithmetic number, because the mean of its divisors is an integer number (16232964).

Almost surely, 2^56815367 is an apocalyptic number.

56815367 is a deficient number, since it is larger than the sum of its proper divisors (8116489).

56815367 is an equidigital number, since it uses as much as digits as its factorization.

56815367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8116488.

The product of its digits is 151200, while the sum is 41.

The square root of 56815367 is about 7537.5968982163. The cubic root of 56815367 is about 384.4341313132.

The spelling of 56815367 in words is "fifty-six million, eight hundred fifteen thousand, three hundred sixty-seven".