265528279 has 2 divisors, whose sum is σ = 265528280. Its totient is φ = 265528278.

The previous prime is 265528231. The next prime is 265528297. The reversal of 265528279 is 972825562.

Together with next prime (265528297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265528279 - 2²⁷ = 131310551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265508279) 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, 132764139 + 132764140.

It is an arithmetic number, because the mean of its divisors is an integer number (132764140).

Almost surely, 2^265528279 is an apocalyptic number.

265528279 is a deficient number, since it is larger than the sum of its proper divisors (1).

265528279 is an equidigital number, since it uses as much as digits as its factorization.

265528279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 46.

The square root of 265528279 is about 16295.0384780153. The cubic root of 265528279 is about 642.7423656274.

The spelling of 265528279 in words is "two hundred sixty-five million, five hundred twenty-eight thousand, two hundred seventy-nine".