268523 has 4 divisors (see below), whose sum is σ = 269808. Its totient is φ = 267240.

The previous prime is 268519. The next prime is 268529. The reversal of 268523 is 325862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 268523 - 2² = 268519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268492 and 268501.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 268523.

It is not an unprimeable number, because it can be changed into a prime (268529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248 + ... + 773.

It is an arithmetic number, because the mean of its divisors is an integer number (67452).

2²⁶⁸⁵²³ is an apocalyptic number.

268523 is a deficient number, since it is larger than the sum of its proper divisors (1285).

268523 is a wasteful number, since it uses less digits than its factorization.

268523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284.

The product of its digits is 2880, while the sum is 26.

The square root of 268523 is about 518.1920493408. The cubic root of 268523 is about 64.5149695840.

The spelling of 268523 in words is "two hundred sixty-eight thousand, five hundred twenty-three".