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22054 = 211027

22054 has 4 divisors (see below), whose sum is σ = 33084. Its totient is φ = 11026.

The previous prime is 22051. The next prime is 22063. The reversal of 22054 is 45022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45022 = 222511.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

22054 is a modest number, since divided by 54 gives 22 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5512 + ... + 5515.

It is an arithmetic number, because the mean of its divisors is an integer number (8271).

222054 is an apocalyptic number.

22054 is a deficient number, since it is larger than the sum of its proper divisors (11030).

22054 is a wasteful number, since it uses less digits than its factorization.

22054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11029.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 22054 is about 148.5058921390. The cubic root of 22054 is about 28.0433003510.

Adding to 22054 its reverse (45022), we get a palindrome (67076).

It can be divided in two parts, 2205 and 4, that added together give a square (2209 = 472).

The spelling of 22054 in words is "twenty-two thousand, fifty-four".

Divisors: 1 2 11027 22054