531725 has 6 divisors (see below), whose sum is σ = 659370. Its totient is φ = 425360.

The previous prime is 531701. The next prime is 531731. The reversal of 531725 is 527135.

531725 = 420² + 421² + 422².

It can be written as a sum of positive squares in 3 ways, for example, as 44521 + 487204 = 211^2 + 698^2 .

It is not a de Polignac number, because 531725 - 2¹⁰ = 530701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 531725.

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 531725.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10610 + ... + 10659.

It is an arithmetic number, because the mean of its divisors is an integer number (109895).

2⁵³¹⁷²⁵ is an apocalyptic number.

It is an amenable number.

531725 is a deficient number, since it is larger than the sum of its proper divisors (127645).

531725 is a wasteful number, since it uses less digits than its factorization.

531725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21279 (or 21274 counting only the distinct ones).

The product of its digits is 1050, while the sum is 23.

The square root of 531725 is about 729.1947613635. The cubic root of 531725 is about 81.0144261254.

The spelling of 531725 in words is "five hundred thirty-one thousand, seven hundred twenty-five".