265249967 has 2 divisors, whose sum is σ = 265249968. Its totient is φ = 265249966.

The previous prime is 265249939. The next prime is 265249973. The reversal of 265249967 is 769942562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265249967 - 2⁶ = 265249903 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265249927) 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, 132624983 + 132624984.

It is an arithmetic number, because the mean of its divisors is an integer number (132624984).

Almost surely, 2^265249967 is an apocalyptic number.

265249967 is a deficient number, since it is larger than the sum of its proper divisors (1).

265249967 is an equidigital number, since it uses as much as digits as its factorization.

265249967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 50.

The square root of 265249967 is about 16286.4964617931. The cubic root of 265249967 is about 642.5177248362.

The spelling of 265249967 in words is "two hundred sixty-five million, two hundred forty-nine thousand, nine hundred sixty-seven".