531925 has 6 divisors (see below), whose sum is σ = 659618. Its totient is φ = 425520.

The previous prime is 531919. The next prime is 531977. The reversal of 531925 is 529135.

531925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 484 + 531441 = 22^2 + 729^2 .

It is not a de Polignac number, because 531925 - 2¹⁵ = 499157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 21277 = 531925 / (5 + 3 + 1 + 9 + 2 + 5).

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 531925.

It is a congruent number.

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, 10614 + ... + 10663.

2⁵³¹⁹²⁵ is an apocalyptic number.

It is an amenable number.

531925 is a deficient number, since it is larger than the sum of its proper divisors (127693).

531925 is a wasteful number, since it uses less digits than its factorization.

531925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21287 (or 21282 counting only the distinct ones).

The product of its digits is 1350, while the sum is 25.

The square root of 531925 is about 729.3318860437. The cubic root of 531925 is about 81.0245822864.

The spelling of 531925 in words is "five hundred thirty-one thousand, nine hundred twenty-five".