22700565 has 12 divisors (see below), whose sum is σ = 39347724. Its totient is φ = 12106944.

The previous prime is 22700551. The next prime is 22700569. The reversal of 22700565 is 56500722.

It can be written as a sum of positive squares in 2 ways, for example, as 9326916 + 13373649 = 3054^2 + 3657^2 .

It is not a de Polignac number, because 22700565 - 2¹⁰ = 22699541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22700569) 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 11 ways as a sum of consecutive naturals, for example, 252184 + ... + 252273.

It is an arithmetic number, because the mean of its divisors is an integer number (3278977).

Almost surely, 2^22700565 is an apocalyptic number.

It is an amenable number.

22700565 is a deficient number, since it is larger than the sum of its proper divisors (16647159).

22700565 is a wasteful number, since it uses less digits than its factorization.

22700565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504468 (or 504465 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 22700565 is about 4764.5109927463. The cubic root of 22700565 is about 283.1471679790.

The spelling of 22700565 in words is "twenty-two million, seven hundred thousand, five hundred sixty-five".