56011051 has 4 divisors (see below), whose sum is σ = 56243704. Its totient is φ = 55778400.

The previous prime is 56011009. The next prime is 56011057. The reversal of 56011051 is 15011065.

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 56011051 - 2⁷ = 56010923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56011057) 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, 115965 + ... + 116446.

It is an arithmetic number, because the mean of its divisors is an integer number (14060926).

Almost surely, 2^56011051 is an apocalyptic number.

56011051 is a deficient number, since it is larger than the sum of its proper divisors (232653).

56011051 is a wasteful number, since it uses less digits than its factorization.

56011051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232652.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 56011051 is about 7484.0531131199. The cubic root of 56011051 is about 382.6114013308.

It can be divided in two parts, 560 and 11051, that added together give a palindrome (11611).

The spelling of 56011051 in words is "fifty-six million, eleven thousand, fifty-one".