13215025513 has 8 divisors (see below), whose sum is σ = 13323663360. Its totient is φ = 13106459520.

The previous prime is 13215025511. The next prime is 13215025519. The reversal of 13215025513 is 31552051231.

13215025513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13215025513 - 2¹ = 13215025511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13215025511) 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 7 ways as a sum of consecutive naturals, for example, 388953 + ... + 421561.

It is an arithmetic number, because the mean of its divisors is an integer number (1665457920).

Almost surely, 2^13215025513 is an apocalyptic number.

It is an amenable number.

13215025513 is a deficient number, since it is larger than the sum of its proper divisors (108637847).

13215025513 is a wasteful number, since it uses less digits than its factorization.

13215025513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35927.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 13215025513 its reverse (31552051231), we get a palindrome (44767076744).

The spelling of 13215025513 in words is "thirteen billion, two hundred fifteen million, twenty-five thousand, five hundred thirteen".