2556560051 has 2 divisors, whose sum is σ = 2556560052. Its totient is φ = 2556560050.

The previous prime is 2556559981. The next prime is 2556560089. The reversal of 2556560051 is 1500656552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2556560051 - 2¹⁸ = 2556297907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2556559993 and 2556560020.

It is not a weakly prime, because it can be changed into another prime (2556520051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278280025 + 1278280026.

It is an arithmetic number, because the mean of its divisors is an integer number (1278280026).

Almost surely, 2^2556560051 is an apocalyptic number.

2556560051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2556560051 is an equidigital number, since it uses as much as digits as its factorization.

2556560051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 2556560051 is about 50562.4371544727. The cubic root of 2556560051 is about 1367.3677503907.

The spelling of 2556560051 in words is "two billion, five hundred fifty-six million, five hundred sixty thousand, fifty-one".