255345 has 16 divisors (see below), whose sum is σ = 423360. Its totient is φ = 131264.

The previous prime is 255329. The next prime is 255349. The reversal of 255345 is 543552.

255345 = 2² + 3² + ... + 91².

It is a cyclic number.

It is not a de Polignac number, because 255345 - 2⁴ = 255329 is a prime.

It is a Curzon number.

255345 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255345.

It is not an unprimeable number, because it can be changed into a prime (255349) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 142 + ... + 728.

It is an arithmetic number, because the mean of its divisors is an integer number (26460).

2²⁵⁵³⁴⁵ is an apocalyptic number.

It is an amenable number.

255345 is a deficient number, since it is larger than the sum of its proper divisors (168015).

255345 is a wasteful number, since it uses less digits than its factorization.

255345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624.

The product of its digits is 3000, while the sum is 24.

The square root of 255345 is about 505.3167323570. The cubic root of 255345 is about 63.4418423019.

Adding to 255345 its reverse (543552), we get a palindrome (798897).

The spelling of 255345 in words is "two hundred fifty-five thousand, three hundred forty-five".