255485 has 8 divisors (see below), whose sum is σ = 315096. Its totient is φ = 198720.

The previous prime is 255473. The next prime is 255487. The reversal of 255485 is 584552.

It can be written as a sum of positive squares in 4 ways, for example, as 64516 + 190969 = 254^2 + 437^2 .

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

It is not a de Polignac number, because 255485 - 2⁴ = 255469 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 (255487) 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, 506 + ... + 875.

It is an arithmetic number, because the mean of its divisors is an integer number (39387).

2²⁵⁵⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

255485 is a deficient number, since it is larger than the sum of its proper divisors (59611).

255485 is a wasteful number, since it uses less digits than its factorization.

255485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423.

The product of its digits is 8000, while the sum is 29.

The square root of 255485 is about 505.4552403527. The cubic root of 255485 is about 63.4534347685.

The spelling of 255485 in words is "two hundred fifty-five thousand, four hundred eighty-five".