12505941503 has 32 divisors (see below), whose sum is σ = 14333137920. Its totient is φ = 10810800000.

The previous prime is 12505941499. The next prime is 12505941521. The reversal of 12505941503 is 30514950521.

It is not a de Polignac number, because 12505941503 - 2² = 12505941499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12505946503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3245528 + ... + 3249378.

It is an arithmetic number, because the mean of its divisors is an integer number (447910560).

Almost surely, 2^12505941503 is an apocalyptic number.

12505941503 is a deficient number, since it is larger than the sum of its proper divisors (1827196417).

12505941503 is a wasteful number, since it uses less digits than its factorization.

12505941503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 12505941503 in words is "twelve billion, five hundred five million, nine hundred forty-one thousand, five hundred three".