13540321525 has 24 divisors (see below), whose sum is σ = 17290857600. Its totient is φ = 10513776000.

The previous prime is 13540321499. The next prime is 13540321541. The reversal of 13540321525 is 52512304531.

13540321525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13540321525 - 2⁵ = 13540321493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58425 + ... + 174625.

It is an arithmetic number, because the mean of its divisors is an integer number (720452400).

Almost surely, 2^13540321525 is an apocalyptic number.

It is an amenable number.

13540321525 is a deficient number, since it is larger than the sum of its proper divisors (3750536075).

13540321525 is a wasteful number, since it uses less digits than its factorization.

13540321525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116349 (or 116344 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 13540321525 in words is "thirteen billion, five hundred forty million, three hundred twenty-one thousand, five hundred twenty-five".