22053566 has 8 divisors (see below), whose sum is σ = 34821480. Its totient is φ = 10446408.

The previous prime is 22053557. The next prime is 22053569. The reversal of 22053566 is 66535022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22053569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290141 + ... + 290216.

It is an arithmetic number, because the mean of its divisors is an integer number (4352685).

Almost surely, 2^22053566 is an apocalyptic number.

22053566 is a deficient number, since it is larger than the sum of its proper divisors (12767914).

22053566 is a wasteful number, since it uses less digits than its factorization.

22053566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580378.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 22053566 is about 4696.1224430374. The cubic root of 22053566 is about 280.4311639535.

Adding to 22053566 its reverse (66535022), we get a palindrome (88588588).

The spelling of 22053566 in words is "twenty-two million, fifty-three thousand, five hundred sixty-six".