255583 has 4 divisors (see below), whose sum is σ = 256608. Its totient is φ = 254560.

The previous prime is 255571. The next prime is 255587. The reversal of 255583 is 385552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 255583 - 2⁵ = 255551 is a prime.

It is a Duffinian number.

255583 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135 + ... + 727.

It is an arithmetic number, because the mean of its divisors is an integer number (64152).

2²⁵⁵⁵⁸³ is an apocalyptic number.

255583 is a deficient number, since it is larger than the sum of its proper divisors (1025).

255583 is an equidigital number, since it uses as much as digits as its factorization.

255583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024.

The product of its digits is 6000, while the sum is 28.

The square root of 255583 is about 505.5521733709. The cubic root of 255583 is about 63.4615469756.

It can be divided in two parts, 255 and 583, that added together give a palindrome (838).

The spelling of 255583 in words is "two hundred fifty-five thousand, five hundred eighty-three".