12452451625 has 8 divisors (see below), whose sum is σ = 15540659784. Its totient is φ = 9961961200.

The previous prime is 12452451619. The next prime is 12452451679. The reversal of 12452451625 is 52615425421.

12452451625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 36252441 + 12416199184 = 6021^2 + 111428^2 .

It is not a de Polignac number, because 12452451625 - 2⁵ = 12452451593 is a prime.

It is a Duffinian 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, 49809682 + ... + 49809931.

It is an arithmetic number, because the mean of its divisors is an integer number (1942582473).

Almost surely, 2^12452451625 is an apocalyptic number.

It is an amenable number.

12452451625 is a deficient number, since it is larger than the sum of its proper divisors (3088208159).

12452451625 is an frugal number, since it uses more digits than its factorization.

12452451625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99619628 (or 99619618 counting only the distinct ones).

The product of its digits is 96000, while the sum is 37.

The spelling of 12452451625 in words is "twelve billion, four hundred fifty-two million, four hundred fifty-one thousand, six hundred twenty-five".