12525406 has 16 divisors (see below), whose sum is σ = 19305216. Its totient is φ = 6092056.

The previous prime is 12525367. The next prime is 12525421. The reversal of 12525406 is 60452521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21045 + ... + 21631.

It is an arithmetic number, because the mean of its divisors is an integer number (1206576).

Almost surely, 2^12525406 is an apocalyptic number.

12525406 is a deficient number, since it is larger than the sum of its proper divisors (6779810).

12525406 is a wasteful number, since it uses less digits than its factorization.

12525406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 12525406 is about 3539.1250331120. The cubic root of 12525406 is about 232.2365675515.

Adding to 12525406 its reverse (60452521), we get a palindrome (72977927).

The spelling of 12525406 in words is "twelve million, five hundred twenty-five thousand, four hundred six".