12445000625 has 10 divisors (see below), whose sum is σ = 15551273562. Its totient is φ = 9956000000.

The previous prime is 12445000591. The next prime is 12445000657. The reversal of 12445000625 is 52600054421.

It can be written as a sum of positive squares in 5 ways, for example, as 8456825521 + 3988175104 = 91961^2 + 63152^2 .

It is not a de Polignac number, because 12445000625 - 2⁸ = 12445000369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9955376 + ... + 9956625.

Almost surely, 2^12445000625 is an apocalyptic number.

It is an amenable number.

12445000625 is a deficient number, since it is larger than the sum of its proper divisors (3106272937).

12445000625 is an frugal number, since it uses more digits than its factorization.

12445000625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19912021 (or 19912006 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 12445000625 in words is "twelve billion, four hundred forty-five million, six hundred twenty-five", and thus it is an aban number.