56871607 has 4 divisors (see below), whose sum is σ = 61246360. Its totient is φ = 52496856.

The previous prime is 56871601. The next prime is 56871611. The reversal of 56871607 is 70617865.

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 56871607 - 2²³ = 48482999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56871607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56871601) 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, 2187357 + ... + 2187382.

It is an arithmetic number, because the mean of its divisors is an integer number (15311590).

Almost surely, 2^56871607 is an apocalyptic number.

56871607 is a deficient number, since it is larger than the sum of its proper divisors (4374753).

56871607 is a wasteful number, since it uses less digits than its factorization.

56871607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374752.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 56871607 is about 7541.3266074345. The cubic root of 56871607 is about 384.5609364760.

The spelling of 56871607 in words is "fifty-six million, eight hundred seventy-one thousand, six hundred seven".