2565335723 has 2 divisors, whose sum is σ = 2565335724. Its totient is φ = 2565335722.

The previous prime is 2565335701. The next prime is 2565335743. The reversal of 2565335723 is 3275335652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2565335723 is a prime.

It is not a weakly prime, because it can be changed into another prime (2565335743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282667861 + 1282667862.

It is an arithmetic number, because the mean of its divisors is an integer number (1282667862).

Almost surely, 2^2565335723 is an apocalyptic number.

2565335723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565335723 is an equidigital number, since it uses as much as digits as its factorization.

2565335723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 567000, while the sum is 41.

The square root of 2565335723 is about 50649.1433589947. The cubic root of 2565335723 is about 1368.9305100911.

The spelling of 2565335723 in words is "two billion, five hundred sixty-five million, three hundred thirty-five thousand, seven hundred twenty-three".