13500455517 has 16 divisors (see below), whose sum is σ = 20120446080. Its totient is φ = 8946406656.

The previous prime is 13500455513. The next prime is 13500455543. The reversal of 13500455517 is 71555400531.

It is a happy number.

13500455517 is a `hidden beast` number, since 13 + 50 + 0 + 45 + 551 + 7 = 666.

It is not a de Polignac number, because 13500455517 - 2² = 13500455513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500455513) 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, 1492548 + ... + 1501565.

It is an arithmetic number, because the mean of its divisors is an integer number (1257527880).

Almost surely, 2^13500455517 is an apocalyptic number.

It is an amenable number.

13500455517 is a deficient number, since it is larger than the sum of its proper divisors (6619990563).

13500455517 is a wasteful number, since it uses less digits than its factorization.

13500455517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2994289 (or 2994283 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 36.

The spelling of 13500455517 in words is "thirteen billion, five hundred million, four hundred fifty-five thousand, five hundred seventeen".