13525231405 has 32 divisors (see below), whose sum is σ = 18884291328. Its totient is φ = 9107251200.

The previous prime is 13525231373. The next prime is 13525231417. The reversal of 13525231405 is 50413252531.

13525231405 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 13525231405 - 2⁵ = 13525231373 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 31 ways as a sum of consecutive naturals, for example, 1363594 + ... + 1373476.

It is an arithmetic number, because the mean of its divisors is an integer number (590134104).

Almost surely, 2^13525231405 is an apocalyptic number.

It is an amenable number.

13525231405 is a deficient number, since it is larger than the sum of its proper divisors (5359059923).

13525231405 is an equidigital number, since it uses as much as digits as its factorization.

13525231405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10597.

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

Adding to 13525231405 its reverse (50413252531), we get a palindrome (63938483936).

The spelling of 13525231405 in words is "thirteen billion, five hundred twenty-five million, two hundred thirty-one thousand, four hundred five".