13500500015 has 4 divisors (see below), whose sum is σ = 16200600024. Its totient is φ = 10800400008.

The previous prime is 13500500011. The next prime is 13500500033. The reversal of 13500500015 is 51000500531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13500500015 - 2² = 13500500011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13500500015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500500011) 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, 1350049997 + ... + 1350050006.

It is an arithmetic number, because the mean of its divisors is an integer number (4050150006).

Almost surely, 2^13500500015 is an apocalyptic number.

13500500015 is a deficient number, since it is larger than the sum of its proper divisors (2700100009).

13500500015 is an equidigital number, since it uses as much as digits as its factorization.

13500500015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700100008.

The product of its (nonzero) digits is 375, while the sum is 20.

The spelling of 13500500015 in words is "thirteen billion, five hundred million, five hundred thousand, fifteen".