It is a happy number.
It is a tau number, because it is divible by the number of its divisors (30).
It is an ABA number since it can be written as A⋅BA, here for A=2, B=75.
It is a Curzon number.
It is a nialpdrome in base 5.
It is a zygodrome in base 5.
211250 is an apocalyptic number.
11250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 11250
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11250 is an equidigital number, since it uses as much as digits as its factorization.
11250 is an odious number, because the sum of its binary digits is odd.
The square root of 11250 is about 106.0660171780. The cubic root of 11250 is about 22.4070237328.
Adding to 11250 its reverse (5211), we get a palindrome (16461).
The spelling of 11250 in words is "eleven thousand, two hundred fifty".