13525440028 has 12 divisors (see below), whose sum is σ = 23800292152. Its totient is φ = 6725356560.

The previous prime is 13525440001. The next prime is 13525440029. The reversal of 13525440028 is 82004452531.

13525440028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13525439975 and 13525440002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13525440029) 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 3 ways as a sum of consecutive naturals, for example, 9340050 + ... + 9341497.

Almost surely, 2^13525440028 is an apocalyptic number.

It is an amenable number.

13525440028 is a deficient number, since it is larger than the sum of its proper divisors (10274852124).

13525440028 is a wasteful number, since it uses less digits than its factorization.

13525440028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18681732 (or 18681730 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 13525440028 its reverse (82004452531), we get a palindrome (95529892559).

The spelling of 13525440028 in words is "thirteen billion, five hundred twenty-five million, four hundred forty thousand, twenty-eight".