11522500 has 60 divisors (see below), whose sum is σ = 27553680. Its totient is φ = 4180000.

The previous prime is 11522491. The next prime is 11522501. The reversal of 11522500 is 522511.

It is not an unprimeable number, because it can be changed into a prime (11522501) 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 19 ways as a sum of consecutive naturals, for example, 27291 + ... + 27709.

It is an arithmetic number, because the mean of its divisors is an integer number (459228).

Almost surely, 2^11522500 is an apocalyptic number.

11522500 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 11522500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13776840).

11522500 is an abundant number, since it is smaller than the sum of its proper divisors (16031180).

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

11522500 is a wasteful number, since it uses less digits than its factorization.

11522500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 11522500 is about 3394.4808144987. The cubic root of 11522500 is about 225.8649831808.

Subtracting from 11522500 its product of nonzero digits (100), we obtain a triangular number (11522400 = T₄₈₀₀).

The spelling of 11522500 in words is "eleven million, five hundred twenty-two thousand, five hundred".