12512501450 has 12 divisors (see below), whose sum is σ = 23273252790. Its totient is φ = 5005000560.

The previous prime is 12512501371. The next prime is 12512501461. The reversal of 12512501450 is 5410521521.

It can be written as a sum of positive squares in 3 ways, for example, as 8091182401 + 4421319049 = 89951^2 + 66493^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125124965 + ... + 125125064.

Almost surely, 2^12512501450 is an apocalyptic number.

12512501450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12512501450 is a deficient number, since it is larger than the sum of its proper divisors (10760751340).

12512501450 is a wasteful number, since it uses less digits than its factorization.

12512501450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250250041 (or 250250036 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The spelling of 12512501450 in words is "twelve billion, five hundred twelve million, five hundred one thousand, four hundred fifty".