2056560851 has 2 divisors, whose sum is σ = 2056560852. Its totient is φ = 2056560850.

The previous prime is 2056560833. The next prime is 2056560881. The reversal of 2056560851 is 1580656502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2056560851 - 2⁶ = 2056560787 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2056560881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028280425 + 1028280426.

It is an arithmetic number, because the mean of its divisors is an integer number (1028280426).

Almost surely, 2^2056560851 is an apocalyptic number.

2056560851 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056560851 is an equidigital number, since it uses as much as digits as its factorization.

2056560851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 2056560851 is about 45349.3202925909. The cubic root of 2056560851 is about 1271.6878484181.

The spelling of 2056560851 in words is "two billion, fifty-six million, five hundred sixty thousand, eight hundred fifty-one".