22548 has 12 divisors (see below), whose sum is σ = 52640. Its totient is φ = 7512.

The previous prime is 22543. The next prime is 22549. The reversal of 22548 is 84522.

22548 is nontrivially palindromic in base 9.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 22548.

It is not an unprimeable number, because it can be changed into a prime (22541) by changing a digit.

22548 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928 + ... + 951.

2²²⁵⁴⁸ is an apocalyptic number.

It is an amenable number.

22548 is an abundant number, since it is smaller than the sum of its proper divisors (30092).

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 (26320).

22548 is a wasteful number, since it uses less digits than its factorization.

22548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886 (or 1884 counting only the distinct ones).

The product of its digits is 640, while the sum is 21.

The square root of 22548 is about 150.1599147576. The cubic root of 22548 is about 28.2511420427.

The spelling of 22548 in words is "twenty-two thousand, five hundred forty-eight".