22241565 has 12 divisors (see below), whose sum is σ = 38552124. Its totient is φ = 11862144.

The previous prime is 22241563. The next prime is 22241587. The reversal of 22241565 is 56514222.

It can be written as a sum of positive squares in 2 ways, for example, as 10830681 + 11410884 = 3291^2 + 3378^2 .

It is not a de Polignac number, because 22241565 - 2¹ = 22241563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22241563) 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, 247084 + ... + 247173.

It is an arithmetic number, because the mean of its divisors is an integer number (3212677).

Almost surely, 2^22241565 is an apocalyptic number.

It is an amenable number.

22241565 is a deficient number, since it is larger than the sum of its proper divisors (16310559).

22241565 is a wasteful number, since it uses less digits than its factorization.

22241565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494268 (or 494265 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 22241565 is about 4716.0963730611. The cubic root of 22241565 is about 281.2257697644.

Adding to 22241565 its reverse (56514222), we get a palindrome (78755787).

The spelling of 22241565 in words is "twenty-two million, two hundred forty-one thousand, five hundred sixty-five".