13530211505 has 16 divisors (see below), whose sum is σ = 17242053120. Its totient is φ = 10163720448.

The previous prime is 13530211469. The next prime is 13530211507. The reversal of 13530211505 is 50511203531.

It is a happy number.

13530211505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13530211505 - 2¹⁰ = 13530210481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13530211507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 619457 + ... + 640926.

It is an arithmetic number, because the mean of its divisors is an integer number (1077628320).

Almost surely, 2^13530211505 is an apocalyptic number.

It is an amenable number.

13530211505 is a deficient number, since it is larger than the sum of its proper divisors (3711841615).

13530211505 is a wasteful number, since it uses less digits than its factorization.

13530211505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260520.

The product of its (nonzero) digits is 2250, while the sum is 26.

The spelling of 13530211505 in words is "thirteen billion, five hundred thirty million, two hundred eleven thousand, five hundred five".