255526 has 4 divisors (see below), whose sum is σ = 383292. Its totient is φ = 127762.

The previous prime is 255523. The next prime is 255551. The reversal of 255526 is 625552.

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

It is a self number, because there is not a number n which added to its sum of digits gives 255526.

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 as a sum of consecutive naturals, namely, 63880 + ... + 63883.

It is an arithmetic number, because the mean of its divisors is an integer number (95823).

2²⁵⁵⁵²⁶ is an apocalyptic number.

255526 is a deficient number, since it is larger than the sum of its proper divisors (127766).

255526 is a wasteful number, since it uses less digits than its factorization.

255526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127765.

The product of its digits is 3000, while the sum is 25.

The square root of 255526 is about 505.4957962239. The cubic root of 255526 is about 63.4568289034.

It can be divided in two parts, 2555 and 26, that multiplied together give a triangular number (66430 = T₃₆₄).

The spelling of 255526 in words is "two hundred fifty-five thousand, five hundred twenty-six".