22750 has 32 divisors (see below), whose sum is σ = 52416. Its totient is φ = 7200.

The previous prime is 22741. The next prime is 22751. The reversal of 22750 is 5722.

It is a happy number.

It is a plaindrome in base 16.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22751) by changing a digit.

22750 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1744 + ... + 1756.

It is an arithmetic number, because the mean of its divisors is an integer number (1638).

2²²⁷⁵⁰ is an apocalyptic number.

22750 is an abundant number, since it is smaller than the sum of its proper divisors (29666).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26208).

22750 is a wasteful number, since it uses less digits than its factorization.

22750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 22750 is about 150.8310312900. The cubic root of 22750 is about 28.3352555405.

The spelling of 22750 in words is "twenty-two thousand, seven hundred fifty".