13500052529 has 4 divisors (see below), whose sum is σ = 14294173284. Its totient is φ = 12705931776.

The previous prime is 13500052523. The next prime is 13500052541. The reversal of 13500052529 is 92525000531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10408692529 + 3091360000 = 102023^2 + 55600^2 .

It is a cyclic number.

It is not a de Polignac number, because 13500052529 - 2²⁸ = 13231617073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13500052495 and 13500052504.

It is not an unprimeable number, because it can be changed into a prime (13500052523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397060352 + ... + 397060385.

It is an arithmetic number, because the mean of its divisors is an integer number (3573543321).

Almost surely, 2^13500052529 is an apocalyptic number.

It is an amenable number.

13500052529 is a deficient number, since it is larger than the sum of its proper divisors (794120755).

13500052529 is an equidigital number, since it uses as much as digits as its factorization.

13500052529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794120754.

The product of its (nonzero) digits is 13500, while the sum is 32.

The spelling of 13500052529 in words is "thirteen billion, five hundred million, fifty-two thousand, five hundred twenty-nine".