13263002500 has 120 divisors (see below), whose sum is σ = 32001631200. Its totient is φ = 4767840000.

The previous prime is 13263002461. The next prime is 13263002503. The reversal of 13263002500 is 520036231.

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

It is not an unprimeable number, because it can be changed into a prime (13263002503) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2444791 + ... + 2450209.

It is an arithmetic number, because the mean of its divisors is an integer number (266680260).

Almost surely, 2^13263002500 is an apocalyptic number.

13263002500 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 13263002500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16000815600).

13263002500 is an abundant number, since it is smaller than the sum of its proper divisors (18738628700).

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

13263002500 is a wasteful number, since it uses less digits than its factorization.

13263002500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5543 (or 5526 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 13263002500 its reverse (520036231), we get a palindrome (13783038731).

The spelling of 13263002500 in words is "thirteen billion, two hundred sixty-three million, two thousand, five hundred".