56813871 has 8 divisors (see below), whose sum is σ = 78364080. Its totient is φ = 36569792.

The previous prime is 56813851. The next prime is 56813893. The reversal of 56813871 is 17831865.

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 56813871 - 2⁶ = 56813807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56813821) 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, 326430 + ... + 326603.

It is an arithmetic number, because the mean of its divisors is an integer number (9795510).

Almost surely, 2^56813871 is an apocalyptic number.

56813871 is a deficient number, since it is larger than the sum of its proper divisors (21550209).

56813871 is a wasteful number, since it uses less digits than its factorization.

56813871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653065.

The product of its digits is 40320, while the sum is 39.

The square root of 56813871 is about 7537.4976616912. The cubic root of 56813871 is about 384.4307571174.

The spelling of 56813871 in words is "fifty-six million, eight hundred thirteen thousand, eight hundred seventy-one".