255525 has 12 divisors (see below), whose sum is σ = 422592. Its totient is φ = 136240.

The previous prime is 255523. The next prime is 255551. The reversal of 255525 is 525552.

It is not a de Polignac number, because 255525 - 2¹ = 255523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255495 and 255504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255523) 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, 1629 + ... + 1778.

It is an arithmetic number, because the mean of its divisors is an integer number (35216).

2²⁵⁵⁵²⁵ is an apocalyptic number.

255525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255525 is a deficient number, since it is larger than the sum of its proper divisors (167067).

255525 is a wasteful number, since it uses less digits than its factorization.

255525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420 (or 3415 counting only the distinct ones).

The product of its digits is 2500, while the sum is 24.

The square root of 255525 is about 505.4948070950. The cubic root of 255525 is about 63.4567461240.

It can be divided in two parts, 255 and 525, that added together give a triangular number (780 = T₃₉).

The spelling of 255525 in words is "two hundred fifty-five thousand, five hundred twenty-five".