2531255 has 4 divisors (see below), whose sum is σ = 3037512. Its totient is φ = 2025000.

The previous prime is 2531233. The next prime is 2531261. The reversal of 2531255 is 5521352.

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

It is not a de Polignac number, because 2531255 - 2⁸ = 2530999 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 2531255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253121 + ... + 253130.

It is an arithmetic number, because the mean of its divisors is an integer number (759378).

2^2531255 is an apocalyptic number.

2531255 is a deficient number, since it is larger than the sum of its proper divisors (506257).

2531255 is an equidigital number, since it uses as much as digits as its factorization.

2531255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506256.

The product of its digits is 1500, while the sum is 23.

The square root of 2531255 is about 1590.9918290174. The cubic root of 2531255 is about 136.2841341967.

It can be divided in two parts, 253125 and 5, that multiplied together give a square (1265625 = 1125²).

The spelling of 2531255 in words is "two million, five hundred thirty-one thousand, two hundred fifty-five".