265696331 has 2 divisors, whose sum is σ = 265696332. Its totient is φ = 265696330.

The previous prime is 265696309. The next prime is 265696337. The reversal of 265696331 is 133696562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265696331 - 2⁶ = 265696267 is a prime.

It is a super-2 number, since 2×265696331² = 141189080613723122, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (265696337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132848165 + 132848166.

It is an arithmetic number, because the mean of its divisors is an integer number (132848166).

Almost surely, 2^265696331 is an apocalyptic number.

265696331 is a deficient number, since it is larger than the sum of its proper divisors (1).

265696331 is an equidigital number, since it uses as much as digits as its factorization.

265696331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 41.

The square root of 265696331 is about 16300.1942012971. The cubic root of 265696331 is about 642.8779335616.

The spelling of 265696331 in words is "two hundred sixty-five million, six hundred ninety-six thousand, three hundred thirty-one".