12515244015 has 16 divisors (see below), whose sum is σ = 20026999296. Its totient is φ = 6673927200.

The previous prime is 12515244013. The next prime is 12515244017. The reversal of 12515244015 is 51044251521.

It is an interprime number because it is at equal distance from previous prime (12515244013) and next prime (12515244017).

It is not a de Polignac number, because 12515244015 - 2¹ = 12515244013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515244013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74470 + ... + 174860.

It is an arithmetic number, because the mean of its divisors is an integer number (1251687456).

Almost surely, 2^12515244015 is an apocalyptic number.

12515244015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12515244015 is a deficient number, since it is larger than the sum of its proper divisors (7511755281).

12515244015 is a wasteful number, since it uses less digits than its factorization.

12515244015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108710.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 12515244015 its reverse (51044251521), we get a palindrome (63559495536).

The spelling of 12515244015 in words is "twelve billion, five hundred fifteen million, two hundred forty-four thousand, fifteen".