13521374250 has 32 divisors (see below), whose sum is σ = 33749352000. Its totient is φ = 3605699600.

The previous prime is 13521374233. The next prime is 13521374281. The reversal of 13521374250 is 5247312531.

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, 9013500 + ... + 9014999.

It is an arithmetic number, because the mean of its divisors is an integer number (1054667250).

Almost surely, 2^13521374250 is an apocalyptic number.

13521374250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13521374250 is an abundant number, since it is smaller than the sum of its proper divisors (20227977750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13521374250 is a wasteful number, since it uses less digits than its factorization.

13521374250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18028519 (or 18028509 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

Adding to 13521374250 its reverse (5247312531), we get a palindrome (18768686781).

The spelling of 13521374250 in words is "thirteen billion, five hundred twenty-one million, three hundred seventy-four thousand, two hundred fifty".