13000417505 has 16 divisors (see below), whose sum is σ = 15773266944. Its totient is φ = 10285396800.

The previous prime is 13000417501. The next prime is 13000417537. The reversal of 13000417505 is 50571400031.

It is not a de Polignac number, because 13000417505 - 2² = 13000417501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13000417501) 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, 433424 + ... + 462446.

It is an arithmetic number, because the mean of its divisors is an integer number (985829184).

Almost surely, 2^13000417505 is an apocalyptic number.

It is an amenable number.

13000417505 is a deficient number, since it is larger than the sum of its proper divisors (2772849439).

13000417505 is a wasteful number, since it uses less digits than its factorization.

13000417505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30016.

The product of its (nonzero) digits is 2100, while the sum is 26.

Adding to 13000417505 its reverse (50571400031), we get a palindrome (63571817536).

The spelling of 13000417505 in words is "thirteen billion, four hundred seventeen thousand, five hundred five".