13521374252 has 48 divisors (see below), whose sum is σ = 26019987840. Its totient is φ = 6122172672.

The previous prime is 13521374233. The next prime is 13521374281. The reversal of 13521374252 is 25247312531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161399 + ... + 230417.

It is an arithmetic number, because the mean of its divisors is an integer number (542083080).

Almost surely, 2^13521374252 is an apocalyptic number.

It is an amenable number.

13521374252 is a deficient number, since it is larger than the sum of its proper divisors (12498613588).

13521374252 is a wasteful number, since it uses less digits than its factorization.

13521374252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69150 (or 69148 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

Adding to 13521374252 its reverse (25247312531), we get a palindrome (38768686783).

The spelling of 13521374252 in words is "thirteen billion, five hundred twenty-one million, three hundred seventy-four thousand, two hundred fifty-two".