265648 has 10 divisors (see below), whose sum is σ = 514724. Its totient is φ = 132816.

The previous prime is 265621. The next prime is 265703. The reversal of 265648 is 846562.

It is a super-3 number, since 3×265648³ = 56239429487333376, which contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8286 + ... + 8317.

2²⁶⁵⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

265648 is a deficient number, since it is larger than the sum of its proper divisors (249076).

265648 is a wasteful number, since it uses less digits than its factorization.

265648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16611 (or 16605 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 265648 is about 515.4105159967. The cubic root of 265648 is about 64.2838950690.

It can be divided in two parts, 2656 and 48, that added together give a square (2704 = 52²).

The spelling of 265648 in words is "two hundred sixty-five thousand, six hundred forty-eight".