22550 has 24 divisors (see below), whose sum is σ = 46872. Its totient is φ = 8000.

The previous prime is 22549. The next prime is 22567. The reversal of 22550 is 5522.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 530 + ... + 570.

It is an arithmetic number, because the mean of its divisors is an integer number (1953).

2²²⁵⁵⁰ is an apocalyptic number.

22550 is an abundant number, since it is smaller than the sum of its proper divisors (24322).

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 (23436).

22550 is a wasteful number, since it uses less digits than its factorization.

22550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 22550 is about 150.1665741768. The cubic root of 22550 is about 28.2519773070.

It can be divided in two parts, 22 and 550, that multiplied together give a square (12100 = 110²).

The spelling of 22550 in words is "twenty-two thousand, five hundred fifty".