12625216 has 14 divisors (see below), whose sum is σ = 25053290. Its totient is φ = 6312576.

The previous prime is 12625211. The next prime is 12625219. The reversal of 12625216 is 61252621.

It can be written as a sum of positive squares in only one way, i.e., 9000000 + 3625216 = 3000^2 + 1904^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12625211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98571 + ... + 98698.

Almost surely, 2^12625216 is an apocalyptic number.

12625216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12625216 is a deficient number, since it is larger than the sum of its proper divisors (12428074).

12625216 is an equidigital number, since it uses as much as digits as its factorization.

12625216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197281 (or 197271 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 12625216 is about 3553.1979961719. The cubic root of 12625216 is about 232.8518033220.

Adding to 12625216 its reverse (61252621), we get a palindrome (73877837).

The spelling of 12625216 in words is "twelve million, six hundred twenty-five thousand, two hundred sixteen".