56731279 has 8 divisors (see below), whose sum is σ = 64023120. Its totient is φ = 49795200.

The previous prime is 56731277. The next prime is 56731307. The reversal of 56731279 is 97213765.

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 56731279 - 2¹ = 56731277 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 (56731277) 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, 88602 + ... + 89239.

It is an arithmetic number, because the mean of its divisors is an integer number (8002890).

Almost surely, 2^56731279 is an apocalyptic number.

56731279 is a deficient number, since it is larger than the sum of its proper divisors (7291841).

56731279 is a wasteful number, since it uses less digits than its factorization.

56731279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177881.

The product of its digits is 79380, while the sum is 40.

The square root of 56731279 is about 7532.0169277558. The cubic root of 56731279 is about 384.2443806644.

The spelling of 56731279 in words is "fifty-six million, seven hundred thirty-one thousand, two hundred seventy-nine".