265313857 has 2 divisors, whose sum is σ = 265313858. Its totient is φ = 265313856.

The previous prime is 265313843. The next prime is 265313861. The reversal of 265313857 is 758313562.

265313857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162919696 + 102394161 = 12764^2 + 10119^2 .

It is a cyclic number.

It is not a de Polignac number, because 265313857 - 2⁷ = 265313729 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (265313897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132656928 + 132656929.

It is an arithmetic number, because the mean of its divisors is an integer number (132656929).

Almost surely, 2^265313857 is an apocalyptic number.

It is an amenable number.

265313857 is a deficient number, since it is larger than the sum of its proper divisors (1).

265313857 is an equidigital number, since it uses as much as digits as its factorization.

265313857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 265313857 is about 16288.4577845786. The cubic root of 265313857 is about 642.5693078297.

The spelling of 265313857 in words is "two hundred sixty-five million, three hundred thirteen thousand, eight hundred fifty-seven".