12486945025 has 9 divisors (see below), whose sum is σ = 15484504681. Its totient is φ = 9989109040.

The previous prime is 12486945013. The next prime is 12486945041. The reversal of 12486945025 is 52054968421.

The square root of 12486945025 is 111745.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3057758209 + 9429186816 = 55297^2 + 97104^2 .

It is not a de Polignac number, because 12486945025 - 2¹¹ = 12486942977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 547551 + ... + 569899.

Almost surely, 2^12486945025 is an apocalyptic number.

12486945025 is the 111745-th square number.

12486945025 is the 55873-rd centered octagonal number.

It is an amenable number.

12486945025 is a deficient number, since it is larger than the sum of its proper divisors (2997559656).

12486945025 is an frugal number, since it uses more digits than its factorization.

12486945025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44708 (or 22354 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 12486945025 in words is "twelve billion, four hundred eighty-six million, nine hundred forty-five thousand, twenty-five".