56077811 has 4 divisors (see below), whose sum is σ = 56244552. Its totient is φ = 55911072.

The previous prime is 56077753. The next prime is 56077817. The reversal of 56077811 is 11877065.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56077811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56077817) 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, 82865 + ... + 83538.

It is an arithmetic number, because the mean of its divisors is an integer number (14061138).

Almost surely, 2^56077811 is an apocalyptic number.

56077811 is a deficient number, since it is larger than the sum of its proper divisors (166741).

56077811 is a wasteful number, since it uses less digits than its factorization.

56077811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166740.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 56077811 is about 7488.5119349574. The cubic root of 56077811 is about 382.7633534608.

The spelling of 56077811 in words is "fifty-six million, seventy-seven thousand, eight hundred eleven".