2565648383 has 2 divisors, whose sum is σ = 2565648384. Its totient is φ = 2565648382.

The previous prime is 2565648329. The next prime is 2565648391. The reversal of 2565648383 is 3838465652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2565648383 - 2²⁸ = 2297212927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2565948383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282824191 + 1282824192.

It is an arithmetic number, because the mean of its divisors is an integer number (1282824192).

Almost surely, 2^2565648383 is an apocalyptic number.

2565648383 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565648383 is an equidigital number, since it uses as much as digits as its factorization.

2565648383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4147200, while the sum is 50.

The square root of 2565648383 is about 50652.2297929716. The cubic root of 2565648383 is about 1368.9861223607.

The spelling of 2565648383 in words is "two billion, five hundred sixty-five million, six hundred forty-eight thousand, three hundred eighty-three".