263265 has 8 divisors (see below), whose sum is σ = 421248. Its totient is φ = 140400.

The previous prime is 263257. The next prime is 263267. The reversal of 263265 is 562362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 263265 - 2³ = 263257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (263267) 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 7 ways as a sum of consecutive naturals, for example, 8761 + ... + 8790.

It is an arithmetic number, because the mean of its divisors is an integer number (52656).

2²⁶³²⁶⁵ is an apocalyptic number.

It is an amenable number.

263265 is a deficient number, since it is larger than the sum of its proper divisors (157983).

263265 is a wasteful number, since it uses less digits than its factorization.

263265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17559.

The product of its digits is 2160, while the sum is 24.

The square root of 263265 is about 513.0935587200. The cubic root of 263265 is about 64.0910974840.

It can be divided in two parts, 263 and 265, that added together give a triangular number (528 = T₃₂).

The spelling of 263265 in words is "two hundred sixty-three thousand, two hundred sixty-five".