12513900250 has 16 divisors (see below), whose sum is σ = 23426021736. Its totient is φ = 5005560000.

The previous prime is 12513900227. The next prime is 12513900313. The reversal of 12513900250 is 5200931521.

It can be written as a sum of positive squares in 4 ways, for example, as 7825348521 + 4688551729 = 88461^2 + 68473^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25027551 + ... + 25028050.

Almost surely, 2^12513900250 is an apocalyptic number.

12513900250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12513900250 is a deficient number, since it is larger than the sum of its proper divisors (10912121486).

12513900250 is an equidigital number, since it uses as much as digits as its factorization.

12513900250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50055618 (or 50055608 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The spelling of 12513900250 in words is "twelve billion, five hundred thirteen million, nine hundred thousand, two hundred fifty".