255393 has 12 divisors (see below), whose sum is σ = 382928. Its totient is φ = 170100.

The previous prime is 255383. The next prime is 255413. The reversal of 255393 is 393552.

It is not a de Polignac number, because 255393 - 2⁵ = 255361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 2⁵ + 5 + 3 + 5⁷ + 9² + 3¹¹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283 + ... + 768.

2²⁵⁵³⁹³ is an apocalyptic number.

It is an amenable number.

255393 is a deficient number, since it is larger than the sum of its proper divisors (127535).

255393 is an equidigital number, since it uses as much as digits as its factorization.

255393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1054 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 255393 is about 505.3642250892. The cubic root of 255393 is about 63.4458173391.

The spelling of 255393 in words is "two hundred fifty-five thousand, three hundred ninety-three".