12500000522 has 8 divisors (see below), whose sum is σ = 18834082176. Its totient is φ = 6221973132.

The previous prime is 12500000521. The next prime is 12500000531. The reversal of 12500000522 is 22500000521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12500000522.

It is not an unprimeable number, because it can be changed into a prime (12500000521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14013008 + ... + 14013899.

It is an arithmetic number, because the mean of its divisors is an integer number (2354260272).

Almost surely, 2^12500000522 is an apocalyptic number.

12500000522 is a deficient number, since it is larger than the sum of its proper divisors (6334081654).

12500000522 is a wasteful number, since it uses less digits than its factorization.

12500000522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28027132.

The product of its (nonzero) digits is 200, while the sum is 17.

Subtracting 12500000522 from its reverse (22500000521), we obtain a palindrome (9999999999).

The spelling of 12500000522 in words is "twelve billion, five hundred million, five hundred twenty-two", and thus it is an aban number.