2565045719 has 2 divisors, whose sum is σ = 2565045720. Its totient is φ = 2565045718.

The previous prime is 2565045701. The next prime is 2565045817. The reversal of 2565045719 is 9175405652.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2565045719 is a prime.

It is a super-2 number, since 2×2565045719² = 13158919081120453922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2565045719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2565044719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282522859 + 1282522860.

It is an arithmetic number, because the mean of its divisors is an integer number (1282522860).

Almost surely, 2^2565045719 is an apocalyptic number.

2565045719 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565045719 is an equidigital number, since it uses as much as digits as its factorization.

2565045719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 44.

The square root of 2565045719 is about 50646.2804063635. The cubic root of 2565045719 is about 1368.8789235637.

The spelling of 2565045719 in words is "two billion, five hundred sixty-five million, forty-five thousand, seven hundred nineteen".