255398 has 32 divisors (see below), whose sum is σ = 483840. Its totient is φ = 99360.

The previous prime is 255383. The next prime is 255413. The reversal of 255398 is 893552.

It is a happy number.

255398 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (255383) and next prime (255413).

It is a d-powerful number, because it can be written as 2⁵ + 5 + 3¹¹ + 5⁷ + 9² + 8 .

It is a congruent number.

It is an unprimeable number.

255398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5411 + ... + 5457.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2²⁵⁵³⁹⁸ is an apocalyptic number.

255398 is a deficient number, since it is larger than the sum of its proper divisors (228442).

255398 is a wasteful number, since it uses less digits than its factorization.

255398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92.

The product of its digits is 10800, while the sum is 32.

The square root of 255398 is about 505.3691719921. The cubic root of 255398 is about 63.4462313768.

The spelling of 255398 in words is "two hundred fifty-five thousand, three hundred ninety-eight".