265280 has 28 divisors (see below), whose sum is σ = 632460. Its totient is φ = 105984.

The previous prime is 265277. The next prime is 265313. The reversal of 265280 is 82562.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 123904 + 141376 = 352^2 + 376^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95 + ... + 734.

2²⁶⁵²⁸⁰ is an apocalyptic number.

265280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265280 is an abundant number, since it is smaller than the sum of its proper divisors (367180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265280 is an equidigital number, since it uses as much as digits as its factorization.

265280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 265280 is about 515.0533952902. The cubic root of 265280 is about 64.2541973669.

It can be divided in two parts, 265 and 280, that added together give a palindrome (545).

The spelling of 265280 in words is "two hundred sixty-five thousand, two hundred eighty".