531604525 has 24 divisors (see below), whose sum is σ = 667624680. Its totient is φ = 419880960.

The previous prime is 531604519. The next prime is 531604529. The reversal of 531604525 is 525406135.

It can be written as a sum of positive squares in 12 ways, for example, as 81613156 + 449991369 = 9034^2 + 21213^2 .

It is not a de Polignac number, because 531604525 - 2³ = 531604517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531604529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 921037 + ... + 921613.

It is an arithmetic number, because the mean of its divisors is an integer number (27817695).

Almost surely, 2^531604525 is an apocalyptic number.

It is an amenable number.

531604525 is a deficient number, since it is larger than the sum of its proper divisors (136020155).

531604525 is a wasteful number, since it uses less digits than its factorization.

531604525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 531604525 is about 23056.5505876313. The cubic root of 531604525 is about 810.0830707873.

The spelling of 531604525 in words is "five hundred thirty-one million, six hundred four thousand, five hundred twenty-five".