265480 has 16 divisors (see below), whose sum is σ = 597420. Its totient is φ = 106176.

The previous prime is 265471. The next prime is 265483. The reversal of 265480 is 84562.

It can be written as a sum of positive squares in 2 ways, for example, as 224676 + 40804 = 474^2 + 202^2 .

It is not an unprimeable number, because it can be changed into a prime (265483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3279 + ... + 3358.

2²⁶⁵⁴⁸⁰ is an apocalyptic number.

265480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265480 is an abundant number, since it is smaller than the sum of its proper divisors (331940).

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

265480 is a wasteful number, since it uses less digits than its factorization.

265480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6648 (or 6644 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 265480 is about 515.2475133370. The cubic root of 265480 is about 64.2703408271.

The spelling of 265480 in words is "two hundred sixty-five thousand, four hundred eighty".