12500054105 has 24 divisors (see below), whose sum is σ = 19035336960. Its totient is φ = 7792239840.

The previous prime is 12500054101. The next prime is 12500054113. The reversal of 12500054105 is 50145000521.

It is a happy number.

12500054105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12500054105 - 2² = 12500054101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12500054101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2316425 + ... + 2321814.

It is an arithmetic number, because the mean of its divisors is an integer number (793139040).

Almost surely, 2^12500054105 is an apocalyptic number.

It is an amenable number.

12500054105 is a deficient number, since it is larger than the sum of its proper divisors (6535282855).

12500054105 is a wasteful number, since it uses less digits than its factorization.

12500054105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4638269 (or 4638262 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 12500054105 its reverse (50145000521), we get a palindrome (62645054626).

The spelling of 12500054105 in words is "twelve billion, five hundred million, fifty-four thousand, one hundred five".