56396855 has 4 divisors (see below), whose sum is σ = 67676232. Its totient is φ = 45117480.

The previous prime is 56396849. The next prime is 56396881. The reversal of 56396855 is 55869365.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55869365 = 5 ⋅11173873.

It is not a de Polignac number, because 56396855 - 2¹² = 56392759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5639681 + ... + 5639690.

It is an arithmetic number, because the mean of its divisors is an integer number (16919058).

Almost surely, 2^56396855 is an apocalyptic number.

56396855 is a deficient number, since it is larger than the sum of its proper divisors (11279377).

56396855 is a wasteful number, since it uses less digits than its factorization.

56396855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11279376.

The product of its digits is 972000, while the sum is 47.

The square root of 56396855 is about 7509.7839516194. The cubic root of 56396855 is about 383.4878675405.

The spelling of 56396855 in words is "fifty-six million, three hundred ninety-six thousand, eight hundred fifty-five".