531255 has 16 divisors (see below), whose sum is σ = 860544. Its totient is φ = 279840.

The previous prime is 531253. The next prime is 531263. The reversal of 531255 is 552135.

531255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 531255 - 2¹ = 531253 is a prime.

It is a nialpdrome in base 9 and base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 531255.

It is not an unprimeable number, because it can be changed into a prime (531253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1440 + ... + 1770.

It is an arithmetic number, because the mean of its divisors is an integer number (53784).

2⁵³¹²⁵⁵ is an apocalyptic number.

531255 is a deficient number, since it is larger than the sum of its proper divisors (329289).

531255 is a wasteful number, since it uses less digits than its factorization.

531255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446.

The product of its digits is 750, while the sum is 21.

The square root of 531255 is about 728.8724168193. The cubic root of 531255 is about 80.9905491183.

The spelling of 531255 in words is "five hundred thirty-one thousand, two hundred fifty-five".