13453525320 has 128 divisors (see below), whose sum is σ = 42529536000. Its totient is φ = 3395208960.

The previous prime is 13453525313. The next prime is 13453525363. The reversal of 13453525320 is 2352535431.

It is a super-2 number, since 2×13453525320² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2667361 + ... + 2672399.

It is an arithmetic number, because the mean of its divisors is an integer number (332262000).

Almost surely, 2^13453525320 is an apocalyptic number.

13453525320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13453525320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21264768000).

13453525320 is an abundant number, since it is smaller than the sum of its proper divisors (29076010680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13453525320 is a wasteful number, since it uses less digits than its factorization.

13453525320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6243 (or 6239 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 13453525320 in words is "thirteen billion, four hundred fifty-three million, five hundred twenty-five thousand, three hundred twenty".