263975 has 6 divisors (see below), whose sum is σ = 327360. Its totient is φ = 211160.

The previous prime is 263957. The next prime is 263983. The reversal of 263975 is 579362.

263975 is nontrivially palindromic in base 15.

It is not a de Polignac number, because 263975 - 2⁶ = 263911 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5255 + ... + 5304.

It is an arithmetic number, because the mean of its divisors is an integer number (54560).

2²⁶³⁹⁷⁵ is an apocalyptic number.

263975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

263975 is a deficient number, since it is larger than the sum of its proper divisors (63385).

263975 is a wasteful number, since it uses less digits than its factorization.

263975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10569 (or 10564 counting only the distinct ones).

The product of its digits is 11340, while the sum is 32.

The square root of 263975 is about 513.7849744786. The cubic root of 263975 is about 64.1486615775.

The spelling of 263975 in words is "two hundred sixty-three thousand, nine hundred seventy-five".