2565610051 has 2 divisors, whose sum is σ = 2565610052. Its totient is φ = 2565610050.

The previous prime is 2565610013. The next prime is 2565610067. The reversal of 2565610051 is 1500165652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2565610051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2565609995 and 2565610022.

It is not a weakly prime, because it can be changed into another prime (2565617051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282805025 + 1282805026.

It is an arithmetic number, because the mean of its divisors is an integer number (1282805026).

Almost surely, 2^2565610051 is an apocalyptic number.

2565610051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565610051 is an equidigital number, since it uses as much as digits as its factorization.

2565610051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 2565610051 is about 50651.8514074264. The cubic root of 2565610051 is about 1368.9793045601.

The spelling of 2565610051 in words is "two billion, five hundred sixty-five million, six hundred ten thousand, fifty-one".