2565706303 has 2 divisors, whose sum is σ = 2565706304. Its totient is φ = 2565706302.

The previous prime is 2565706267. The next prime is 2565706307. The reversal of 2565706303 is 3036075652.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2565706303 - 2²⁵ = 2532151871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2565706307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282853151 + 1282853152.

It is an arithmetic number, because the mean of its divisors is an integer number (1282853152).

Almost surely, 2^2565706303 is an apocalyptic number.

2565706303 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565706303 is an equidigital number, since it uses as much as digits as its factorization.

2565706303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 37.

The square root of 2565706303 is about 50652.8015316034. The cubic root of 2565706303 is about 1368.9964239905.

The spelling of 2565706303 in words is "two billion, five hundred sixty-five million, seven hundred six thousand, three hundred three".