11525172500 has 120 divisors (see below), whose sum is σ = 25918828320. Its totient is φ = 4481136000.

The previous prime is 11525172427. The next prime is 11525172521. The reversal of 11525172500 is 527152511.

11525172500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 13902086 + ... + 13902914.

It is an arithmetic number, because the mean of its divisors is an integer number (215990236).

Almost surely, 2^11525172500 is an apocalyptic number.

11525172500 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 11525172500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12959414160).

11525172500 is an abundant number, since it is smaller than the sum of its proper divisors (14393655820).

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

11525172500 is an equidigital number, since it uses as much as digits as its factorization.

11525172500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 29.

The spelling of 11525172500 in words is "eleven billion, five hundred twenty-five million, one hundred seventy-two thousand, five hundred".