56808811 has 4 divisors (see below), whose sum is σ = 56845152. Its totient is φ = 56772472.

The previous prime is 56808809. The next prime is 56808823. The reversal of 56808811 is 11880865.

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 56808811 - 2¹ = 56808809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56808211) 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, 15715 + ... + 18988.

It is an arithmetic number, because the mean of its divisors is an integer number (14211288).

Almost surely, 2^56808811 is an apocalyptic number.

56808811 is a deficient number, since it is larger than the sum of its proper divisors (36341).

56808811 is a wasteful number, since it uses less digits than its factorization.

56808811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36340.

The product of its (nonzero) digits is 15360, while the sum is 37.

The square root of 56808811 is about 7537.1619990551. The cubic root of 56808811 is about 384.4193439575.

The spelling of 56808811 in words is "fifty-six million, eight hundred eight thousand, eight hundred eleven".