13525242002 has 4 divisors (see below), whose sum is σ = 20287863006. Its totient is φ = 6762621000.

The previous prime is 13525241993. The next prime is 13525242037. The reversal of 13525242002 is 20024252531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20024252531 = 5639 ⋅3551029.

It can be written as a sum of positive squares in only one way, i.e., 10784614801 + 2740627201 = 103849^2 + 52351^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3381310499 + ... + 3381310502.

Almost surely, 2^13525242002 is an apocalyptic number.

13525242002 is a deficient number, since it is larger than the sum of its proper divisors (6762621004).

13525242002 is an equidigital number, since it uses as much as digits as its factorization.

13525242002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762621003.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 13525242002 its reverse (20024252531), we get a palindrome (33549494533).

The spelling of 13525242002 in words is "thirteen billion, five hundred twenty-five million, two hundred forty-two thousand, two".