56855406 has 16 divisors (see below), whose sum is σ = 113834448. Its totient is φ = 18931200.

The previous prime is 56855401. The next prime is 56855437. The reversal of 56855406 is 60455865.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56855401) 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, 1486 + ... + 10766.

It is an arithmetic number, because the mean of its divisors is an integer number (7114653).

Almost surely, 2^56855406 is an apocalyptic number.

56855406 is an abundant number, since it is smaller than the sum of its proper divisors (56979042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56855406 is a wasteful number, since it uses less digits than its factorization.

56855406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10307.

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 56855406 is about 7540.2523830440. The cubic root of 56855406 is about 384.5244164164.

The spelling of 56855406 in words is "fifty-six million, eight hundred fifty-five thousand, four hundred six".