268505 has 8 divisors (see below), whose sum is σ = 326592. Its totient is φ = 211888.

The previous prime is 268501. The next prime is 268507. The reversal of 268505 is 505862.

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

It is a cyclic number.

It is not a de Polignac number, because 268505 - 2² = 268501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (268501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92 + ... + 738.

It is an arithmetic number, because the mean of its divisors is an integer number (40824).

2²⁶⁸⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

268505 is a deficient number, since it is larger than the sum of its proper divisors (58087).

268505 is an equidigital number, since it uses as much as digits as its factorization.

268505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 268505 is about 518.1746809716. The cubic root of 268505 is about 64.5135280000.

The spelling of 268505 in words is "two hundred sixty-eight thousand, five hundred five".