12500000050 has 36 divisors (see below), whose sum is σ = 23831064558. Its totient is φ = 4878016000.

The previous prime is 12500000033. The next prime is 12500000063. The reversal of 12500000050 is 5000000521.

It can be written as a sum of positive squares in 9 ways, for example, as 3744093721 + 8755906329 = 61189^2 + 93573^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9690 + ... + 158410.

Almost surely, 2^12500000050 is an apocalyptic number.

12500000050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12500000050 is a deficient number, since it is larger than the sum of its proper divisors (11331064508).

12500000050 is a wasteful number, since it uses less digits than its factorization.

12500000050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148815 (or 148769 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 13.

Adding to 12500000050 its reverse (5000000521), we get a palindrome (17500000571).

The spelling of 12500000050 in words is "twelve billion, five hundred million, fifty", and thus it is an aban number.