13535496521 has 8 divisors (see below), whose sum is σ = 13783420800. Its totient is φ = 13289487120.

The previous prime is 13535496463. The next prime is 13535496523. The reversal of 13535496521 is 12569453531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13535496521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13535496523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464450 + ... + 492731.

It is an arithmetic number, because the mean of its divisors is an integer number (1722927600).

Almost surely, 2^13535496521 is an apocalyptic number.

It is an amenable number.

13535496521 is a deficient number, since it is larger than the sum of its proper divisors (247924279).

13535496521 is an equidigital number, since it uses as much as digits as its factorization.

13535496521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957439.

The product of its digits is 486000, while the sum is 44.

Subtracting from 13535496521 its reverse (12569453531), we obtain a triangular number (966042990 = T₄₃₉₅₅).

The spelling of 13535496521 in words is "thirteen billion, five hundred thirty-five million, four hundred ninety-six thousand, five hundred twenty-one".