12502047305 has 24 divisors (see below), whose sum is σ = 16801484616. Its totient is φ = 8920820480.

The previous prime is 12502047301. The next prime is 12502047323. The reversal of 12502047305 is 50374020521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2534820409 + 9967226896 = 50347^2 + 99836^2 .

It is not a de Polignac number, because 12502047305 - 2² = 12502047301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12502047301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162884 + ... + 227013.

It is an arithmetic number, because the mean of its divisors is an integer number (700061859).

Almost surely, 2^12502047305 is an apocalyptic number.

It is an amenable number.

12502047305 is a deficient number, since it is larger than the sum of its proper divisors (4299437311).

12502047305 is a wasteful number, since it uses less digits than its factorization.

12502047305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389977 (or 389966 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

Adding to 12502047305 its reverse (50374020521), we get a palindrome (62876067826).

The spelling of 12502047305 in words is "twelve billion, five hundred two million, forty-seven thousand, three hundred five".