255853 has 4 divisors (see below), whose sum is σ = 275548. Its totient is φ = 236160.

The previous prime is 255851. The next prime is 255859. The reversal of 255853 is 358552.

It is the 207-th star number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 161604 + 94249 = 402^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 255853 - 2¹ = 255851 is a prime.

255853 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255851) 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, 9828 + ... + 9853.

It is an arithmetic number, because the mean of its divisors is an integer number (68887).

2²⁵⁵⁸⁵³ is an apocalyptic number.

It is an amenable number.

255853 is a deficient number, since it is larger than the sum of its proper divisors (19695).

255853 is a wasteful number, since it uses less digits than its factorization.

255853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19694.

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

The square root of 255853 is about 505.8191376372. The cubic root of 255853 is about 63.4838862124.

It can be divided in two parts, 2 and 55853, that added together give a palindrome (55855).

The spelling of 255853 in words is "two hundred fifty-five thousand, eight hundred fifty-three".