255425 has 12 divisors (see below), whose sum is σ = 335916. Its totient is φ = 192000.

The previous prime is 255419. The next prime is 255443. The reversal of 255425 is 524552.

It can be written as a sum of positive squares in 6 ways, for example, as 9409 + 246016 = 97^2 + 496^2 .

It is not a de Polignac number, because 255425 - 2⁶ = 255361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255425.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125 + ... + 725.

It is an arithmetic number, because the mean of its divisors is an integer number (27993).

2²⁵⁵⁴²⁵ is an apocalyptic number.

255425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255425 is a deficient number, since it is larger than the sum of its proper divisors (80491).

255425 is a wasteful number, since it uses less digits than its factorization.

255425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 623 counting only the distinct ones).

The product of its digits is 2000, while the sum is 23.

The square root of 255425 is about 505.3958844312. The cubic root of 255425 is about 63.4484670872.

Adding to 255425 its reverse (524552), we get a palindrome (779977).

The spelling of 255425 in words is "two hundred fifty-five thousand, four hundred twenty-five".