255382 has 4 divisors (see below), whose sum is σ = 383076. Its totient is φ = 127690.

The previous prime is 255371. The next prime is 255383. The reversal of 255382 is 283552.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255383) by changing a digit.

255382 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 as a sum of consecutive naturals, namely, 63844 + ... + 63847.

It is an arithmetic number, because the mean of its divisors is an integer number (95769).

2²⁵⁵³⁸² is an apocalyptic number.

255382 is a deficient number, since it is larger than the sum of its proper divisors (127694).

255382 is a wasteful number, since it uses less digits than its factorization.

255382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127693.

The product of its digits is 2400, while the sum is 25.

The square root of 255382 is about 505.3533417323. The cubic root of 255382 is about 63.4449064371. Note that the first 3 decimals are identical.

It can be divided in two parts, 25538 and 2, that multiplied together give a square (51076 = 226²).

The spelling of 255382 in words is "two hundred fifty-five thousand, three hundred eighty-two".