13521525012 has 36 divisors (see below), whose sum is σ = 34183539936. Its totient is φ = 4506630480.

The previous prime is 13521524953. The next prime is 13521525041. The reversal of 13521525012 is 21052512531.

13521525012 is a `hidden beast` number, since 1 + 3 + 5 + 2 + 152 + 501 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 374833 + ... + 409319.

It is an arithmetic number, because the mean of its divisors is an integer number (949542776).

Almost surely, 2^13521525012 is an apocalyptic number.

13521525012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13521525012 is an abundant number, since it is smaller than the sum of its proper divisors (20662014924).

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

13521525012 is a wasteful number, since it uses less digits than its factorization.

13521525012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45388 (or 45383 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The spelling of 13521525012 in words is "thirteen billion, five hundred twenty-one million, five hundred twenty-five thousand, twelve".