331125525 has 18 divisors (see below), whose sum is σ = 593083010. Its totient is φ = 176600160.

The previous prime is 331125511. The next prime is 331125551. The reversal of 331125525 is 525521133.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 96943716 + 234181809 = 9846^2 + 15303^2 .

It is not a de Polignac number, because 331125525 - 2⁹ = 331125013 is a prime.

It is a super-2 number, since 2×331125525² = 219288226613051250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 735610 + ... + 736059.

Almost surely, 2^331125525 is an apocalyptic number.

It is an amenable number.

331125525 is a deficient number, since it is larger than the sum of its proper divisors (261957485).

331125525 is a wasteful number, since it uses less digits than its factorization.

331125525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471685 (or 1471677 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 331125525 is about 18196.8548106534. The cubic root of 331125525 is about 691.8270733272.

Adding to 331125525 its reverse (525521133), we get a palindrome (856646658).

The spelling of 331125525 in words is "three hundred thirty-one million, one hundred twenty-five thousand, five hundred twenty-five".