12501425 has 6 divisors (see below), whose sum is σ = 15501798. Its totient is φ = 10001120.

The previous prime is 12501413. The next prime is 12501427. The reversal of 12501425 is 52410521.

It can be written as a sum of positive squares in 3 ways, for example, as 167281 + 12334144 = 409^2 + 3512^2 .

It is not a de Polignac number, because 12501425 - 2⁶ = 12501361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12501397 and 12501406.

It is not an unprimeable number, because it can be changed into a prime (12501427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250004 + ... + 250053.

It is an arithmetic number, because the mean of its divisors is an integer number (2583633).

Almost surely, 2^12501425 is an apocalyptic number.

It is an amenable number.

12501425 is a deficient number, since it is larger than the sum of its proper divisors (3000373).

12501425 is an equidigital number, since it uses as much as digits as its factorization.

12501425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500067 (or 500062 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 12501425 is about 3535.7354256222. The cubic root of 12501425 is about 232.0882603643.

Adding to 12501425 its reverse (52410521), we get a palindrome (64911946).

The spelling of 12501425 in words is "twelve million, five hundred one thousand, four hundred twenty-five".