13525621136 has 40 divisors (see below), whose sum is σ = 26925687360. Its totient is φ = 6577213824.

The previous prime is 13525621093. The next prime is 13525621139. The reversal of 13525621136 is 63112652531.

It is a super-2 number, since 2×13525621136² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13525621096 and 13525621105.

It is not an unprimeable number, because it can be changed into a prime (13525621139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2274455 + ... + 2280393.

It is an arithmetic number, because the mean of its divisors is an integer number (673142184).

Almost surely, 2^13525621136 is an apocalyptic number.

13525621136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13525621136 is a deficient number, since it is larger than the sum of its proper divisors (13400066224).

13525621136 is a wasteful number, since it uses less digits than its factorization.

13525621136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9831 (or 9825 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The spelling of 13525621136 in words is "thirteen billion, five hundred twenty-five million, six hundred twenty-one thousand, one hundred thirty-six".