12625813 has 4 divisors (see below), whose sum is σ = 12710700. Its totient is φ = 12540928.

The previous prime is 12625801. The next prime is 12625831. The reversal of 12625813 is 31852621.

12625813 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31852621 = 1907 ⋅16703.

It can be written as a sum of positive squares in 2 ways, for example, as 5189284 + 7436529 = 2278^2 + 2727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12625813 is a prime.

It is a super-2 number, since 2×12625813² = 318822307821938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12625853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42220 + ... + 42517.

It is an arithmetic number, because the mean of its divisors is an integer number (3177675).

Almost surely, 2^12625813 is an apocalyptic number.

It is an amenable number.

12625813 is a deficient number, since it is larger than the sum of its proper divisors (84887).

12625813 is an equidigital number, since it uses as much as digits as its factorization.

12625813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84886.

The product of its digits is 2880, while the sum is 28.

The square root of 12625813 is about 3553.2820040070. The cubic root of 12625813 is about 232.8554734991.

The spelling of 12625813 in words is "twelve million, six hundred twenty-five thousand, eight hundred thirteen".