56905859 has 4 divisors (see below), whose sum is σ = 58868160. Its totient is φ = 54943560.

The previous prime is 56905843. The next prime is 56905867. The reversal of 56905859 is 95850965.

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 56905859 - 2⁴ = 56905843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56905819) 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, 981107 + ... + 981164.

It is an arithmetic number, because the mean of its divisors is an integer number (14717040).

Almost surely, 2^56905859 is an apocalyptic number.

56905859 is a deficient number, since it is larger than the sum of its proper divisors (1962301).

56905859 is a wasteful number, since it uses less digits than its factorization.

56905859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962300.

The product of its (nonzero) digits is 486000, while the sum is 47.

The square root of 56905859 is about 7543.5972188340. The cubic root of 56905859 is about 384.6381240125.

The spelling of 56905859 in words is "fifty-six million, nine hundred five thousand, eight hundred fifty-nine".