211250 has 30 divisors (see below), whose sum is σ = 428769. Its totient is φ = 78000.

The previous prime is 211247. The next prime is 211271. The reversal of 211250 is 52112.

211250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 82369 + 128881 = 287^2 + 359^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=325.

It is a hoax number, since the sum of its digits (11) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 16244 + ... + 16256.

2²¹¹²⁵⁰ is an apocalyptic number.

211250 is an abundant number, since it is smaller than the sum of its proper divisors (217519).

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

211250 is an equidigital number, since it uses as much as digits as its factorization.

211250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 211250 is about 459.6194077713. The cubic root of 211250 is about 59.5569212598.

Adding to 211250 its reverse (52112), we get a palindrome (263362).

It can be divided in two parts, 2 and 11250, that multiplied together give a square (22500 = 150²).

The spelling of 211250 in words is "two hundred eleven thousand, two hundred fifty".