12525331 has 24 divisors (see below), whose sum is σ = 16032800. Its totient is φ = 9723168.

The previous prime is 12525301. The next prime is 12525347. The reversal of 12525331 is 13352521.

It is not a de Polignac number, because 12525331 - 2¹¹ = 12523283 is a prime.

It is a super-2 number, since 2×12525331² = 313767833319122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12525301) 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, 236301 + ... + 236353.

Almost surely, 2^12525331 is an apocalyptic number.

12525331 is a deficient number, since it is larger than the sum of its proper divisors (3507469).

12525331 is an frugal number, since it uses more digits than its factorization.

12525331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 73 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 12525331 is about 3539.1144372569. The cubic root of 12525331 is about 232.2361040195.

Adding to 12525331 its reverse (13352521), we get a palindrome (25877852).

The spelling of 12525331 in words is "twelve million, five hundred twenty-five thousand, three hundred thirty-one".