13525322431 has 8 divisors (see below), whose sum is σ = 14124620160. Its totient is φ = 12926961432.

The previous prime is 13525322407. The next prime is 13525322467. The reversal of 13525322431 is 13422352531.

13525322431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13525322431 - 2¹³ = 13525314239 is a prime.

It is a super-2 number, since 2×13525322431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13525322393 and 13525322402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13525322831) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 204585 + ... + 262498.

It is an arithmetic number, because the mean of its divisors is an integer number (1765577520).

Almost surely, 2^13525322431 is an apocalyptic number.

13525322431 is a deficient number, since it is larger than the sum of its proper divisors (599297729).

13525322431 is a wasteful number, since it uses less digits than its factorization.

13525322431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468365.

The product of its digits is 21600, while the sum is 31.

Adding to 13525322431 its reverse (13422352531), we get a palindrome (26947674962).

The spelling of 13525322431 in words is "thirteen billion, five hundred twenty-five million, three hundred twenty-two thousand, four hundred thirty-one".