13520204500 has 96 divisors (see below), whose sum is σ = 32294545920. Its totient is φ = 4903920000.

The previous prime is 13520204479. The next prime is 13520204527. The reversal of 13520204500 is 540202531.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 2312581 + ... + 2318419.

It is an arithmetic number, because the mean of its divisors is an integer number (336401520).

Almost surely, 2^13520204500 is an apocalyptic number.

13520204500 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 13520204500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16147272960).

13520204500 is an abundant number, since it is smaller than the sum of its proper divisors (18774341420).

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

13520204500 is a wasteful number, since it uses less digits than its factorization.

13520204500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6290 (or 6278 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The spelling of 13520204500 in words is "thirteen billion, five hundred twenty million, two hundred four thousand, five hundred".