431525 has 12 divisors (see below), whose sum is σ = 549444. Its totient is φ = 336000.

The previous prime is 431521. The next prime is 431533. The reversal of 431525 is 525134.

It can be written as a sum of positive squares in 6 ways, for example, as 214369 + 217156 = 463^2 + 466^2 .

It is not a de Polignac number, because 431525 - 2² = 431521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431497 and 431506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 815 + ... + 1235.

It is an arithmetic number, because the mean of its divisors is an integer number (45787).

2⁴³¹⁵²⁵ is an apocalyptic number.

It is an amenable number.

431525 is a deficient number, since it is larger than the sum of its proper divisors (117919).

431525 is a wasteful number, since it uses less digits than its factorization.

431525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 467 counting only the distinct ones).

The product of its digits is 600, while the sum is 20.

The square root of 431525 is about 656.9056248808. The cubic root of 431525 is about 75.5675462355.

Adding to 431525 its reverse (525134), we get a palindrome (956659).

The spelling of 431525 in words is "four hundred thirty-one thousand, five hundred twenty-five".