56005051 has 4 divisors (see below), whose sum is σ = 56023704. Its totient is φ = 55986400.

The previous prime is 56005043. The next prime is 56005063. The reversal of 56005051 is 15050065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15050065 = 5 ⋅3010013.

It is a cyclic number.

It is not a de Polignac number, because 56005051 - 2³ = 56005043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56005031) 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, 3685 + ... + 11206.

It is an arithmetic number, because the mean of its divisors is an integer number (14005926).

Almost surely, 2^56005051 is an apocalyptic number.

56005051 is a deficient number, since it is larger than the sum of its proper divisors (18653).

56005051 is a wasteful number, since it uses less digits than its factorization.

56005051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18652.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 56005051 is about 7483.6522500715. The cubic root of 56005051 is about 382.5977388460.

The spelling of 56005051 in words is "fifty-six million, five thousand, fifty-one".