22053564 has 36 divisors (see below), whose sum is σ = 60035976. Its totient is φ = 6785568.

The previous prime is 22053557. The next prime is 22053569. The reversal of 22053564 is 46535022.

It is a tau number, because it is divible by the number of its divisors (36).

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23094 + ... + 24029.

It is an arithmetic number, because the mean of its divisors is an integer number (1667666).

Almost surely, 2^22053564 is an apocalyptic number.

It is an amenable number.

22053564 is an abundant number, since it is smaller than the sum of its proper divisors (37982412).

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

22053564 is a wasteful number, since it uses less digits than its factorization.

22053564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47146 (or 47141 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 22053564 is about 4696.1222300958. The cubic root of 22053564 is about 280.4311554762.

Adding to 22053564 its reverse (46535022), we get a palindrome (68588586).

The spelling of 22053564 in words is "twenty-two million, fifty-three thousand, five hundred sixty-four".