226422565 has 4 divisors (see below), whose sum is σ = 271707084. Its totient is φ = 181138048.

The previous prime is 226422529. The next prime is 226422569. The reversal of 226422565 is 565224622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 565224622 = 2 ⋅282612311.

It can be written as a sum of positive squares in 2 ways, for example, as 87347716 + 139074849 = 9346^2 + 11793^2 .

It is a cyclic number.

It is not a de Polignac number, because 226422565 - 2¹¹ = 226420517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 226422565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226422569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22642252 + ... + 22642261.

It is an arithmetic number, because the mean of its divisors is an integer number (67926771).

Almost surely, 2^226422565 is an apocalyptic number.

It is an amenable number.

226422565 is a deficient number, since it is larger than the sum of its proper divisors (45284519).

226422565 is an equidigital number, since it uses as much as digits as its factorization.

226422565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45284518.

The product of its digits is 57600, while the sum is 34.

The square root of 226422565 is about 15047.3441178169. The cubic root of 226422565 is about 609.4993338759.

The spelling of 226422565 in words is "two hundred twenty-six million, four hundred twenty-two thousand, five hundred sixty-five".