265279 has 4 divisors (see below), whose sum is σ = 303184. Its totient is φ = 227376.

The previous prime is 265277. The next prime is 265313. The reversal of 265279 is 972562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 972562 = 2 ⋅486281.

It is a cyclic number.

It is not a de Polignac number, because 265279 - 2¹ = 265277 is a prime.

It is a d-powerful number, because it can be written as 2⁶ + 6² + 2¹⁸ + 5⁴ + 7⁴ + 9 .

It is a self number, because there is not a number n which added to its sum of digits gives 265279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18942 + ... + 18955.

It is an arithmetic number, because the mean of its divisors is an integer number (75796).

2²⁶⁵²⁷⁹ is an apocalyptic number.

265279 is a deficient number, since it is larger than the sum of its proper divisors (37905).

265279 is an equidigital number, since it uses as much as digits as its factorization.

265279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37904.

The product of its digits is 7560, while the sum is 31.

The square root of 265279 is about 515.0524245162. The cubic root of 265279 is about 64.2541166292.

The spelling of 265279 in words is "two hundred sixty-five thousand, two hundred seventy-nine".