255543 has 8 divisors (see below), whose sum is σ = 344448. Its totient is φ = 168504.

The previous prime is 255523. The next prime is 255551. The reversal of 255543 is 345552.

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

It is not a de Polignac number, because 255543 - 2⁵ = 255511 is a prime.

It is a super-3 number, since 3×255543³ = 50062579333764021, which contains 333 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255543.

It is not an unprimeable number, because it can be changed into a prime (255503) 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, 105 + ... + 722.

It is an arithmetic number, because the mean of its divisors is an integer number (43056).

2²⁵⁵⁵⁴³ is an apocalyptic number.

255543 is a deficient number, since it is larger than the sum of its proper divisors (88905).

255543 is a wasteful number, since it uses less digits than its factorization.

255543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933.

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

The square root of 255543 is about 505.5126111187. The cubic root of 255543 is about 63.4582361212.

Subtracting 255543 from its reverse (345552), we obtain a palindrome (90009).

The spelling of 255543 in words is "two hundred fifty-five thousand, five hundred forty-three".