12531025 has 12 divisors (see below), whose sum is σ = 16734172. Its totient is φ = 9253440.

The previous prime is 12531019. The next prime is 12531041. The reversal of 12531025 is 52013521.

12531025 is digitally balanced in base 3, 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 6 ways, for example, as 2143296 + 10387729 = 1464^2 + 3223^2 .

It is not a de Polignac number, because 12531025 - 2⁵ = 12530993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12530993 and 12531011.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18954 + ... + 19603.

Almost surely, 2^12531025 is an apocalyptic number.

It is an amenable number.

12531025 is a deficient number, since it is larger than the sum of its proper divisors (4203147).

12531025 is a wasteful number, since it uses less digits than its factorization.

12531025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38580 (or 38575 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 12531025 is about 3539.9187843791. The cubic root of 12531025 is about 232.2712901036.

Adding to 12531025 its reverse (52013521), we get a palindrome (64544546).

It can be divided in two parts, 1253 and 1025, that added together give a triangular number (2278 = T₆₇).

The spelling of 12531025 in words is "twelve million, five hundred thirty-one thousand, twenty-five".