22005054 has 16 divisors (see below), whose sum is σ = 48900240. Its totient is φ = 7335000.

The previous prime is 22005037. The next prime is 22005073. The reversal of 22005054 is 45050022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203697 + ... + 203804.

It is an arithmetic number, because the mean of its divisors is an integer number (3056265).

Almost surely, 2^22005054 is an apocalyptic number.

22005054 is an abundant number, since it is smaller than the sum of its proper divisors (26895186).

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

22005054 is a wasteful number, since it uses less digits than its factorization.

22005054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407512 (or 407506 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 22005054 is about 4690.9544870954. The cubic root of 22005054 is about 280.2253882511.

Adding to 22005054 its reverse (45050022), we get a palindrome (67055076).

It can be divided in two parts, 2 and 2005054, that added together give a square (2005056 = 1416²).

The spelling of 22005054 in words is "twenty-two million, five thousand, fifty-four".