265975 has 6 divisors (see below), whose sum is σ = 329840. Its totient is φ = 212760.

The previous prime is 265961. The next prime is 265987. The reversal of 265975 is 579562.

It is not a de Polignac number, because 265975 - 2⁷ = 265847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265975.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5295 + ... + 5344.

2²⁶⁵⁹⁷⁵ is an apocalyptic number.

265975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

265975 is a deficient number, since it is larger than the sum of its proper divisors (63865).

265975 is a wasteful number, since it uses less digits than its factorization.

265975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10649 (or 10644 counting only the distinct ones).

The product of its digits is 18900, while the sum is 34.

The square root of 265975 is about 515.7276412992. The cubic root of 265975 is about 64.3102610551.

The spelling of 265975 in words is "two hundred sixty-five thousand, nine hundred seventy-five".