255553 has 8 divisors (see below), whose sum is σ = 274176. Its totient is φ = 237600.

The previous prime is 255551. The next prime is 255571. The reversal of 255553 is 355552.

255553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 255553 - 2¹ = 255551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255551) 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, 808 + ... + 1078.

It is an arithmetic number, because the mean of its divisors is an integer number (34272).

2²⁵⁵⁵⁵³ is an apocalyptic number.

255553 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

255553 is a deficient number, since it is larger than the sum of its proper divisors (18623).

255553 is a wasteful number, since it uses less digits than its factorization.

255553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335.

The product of its digits is 3750, while the sum is 25.

The square root of 255553 is about 505.5225019720. The cubic root of 255553 is about 63.4590638672.

Subtracting 255553 from its reverse (355552), we obtain a palindrome (99999).

It can be divided in two parts, 255 and 553, that added together give a palindrome (808).

The spelling of 255553 in words is "two hundred fifty-five thousand, five hundred fifty-three".