12500002650 has 24 divisors (see below), whose sum is σ = 31000006944. Its totient is φ = 3333334000.

The previous prime is 12500002637. The next prime is 12500002651. The reversal of 12500002650 is 5620000521.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12500002651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41666526 + ... + 41666825.

It is an arithmetic number, because the mean of its divisors is an integer number (1291666956).

Almost surely, 2^12500002650 is an apocalyptic number.

12500002650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12500002650 is an abundant number, since it is smaller than the sum of its proper divisors (18500004294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12500002650 is a wasteful number, since it uses less digits than its factorization.

12500002650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83333366 (or 83333361 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The spelling of 12500002650 in words is "twelve billion, five hundred million, two thousand, six hundred fifty".