42226565 has 8 divisors (see below), whose sum is σ = 50709240. Its totient is φ = 33756352.

The previous prime is 42226543. The next prime is 42226567. The reversal of 42226565 is 56562224.

It can be written as a sum of positive squares in 4 ways, for example, as 5527201 + 36699364 = 2351^2 + 6058^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42226565 - 2⁶ = 42226501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42226567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7871 + ... + 12099.

It is an arithmetic number, because the mean of its divisors is an integer number (6338655).

Almost surely, 2^42226565 is an apocalyptic number.

It is an amenable number.

42226565 is a deficient number, since it is larger than the sum of its proper divisors (8482675).

42226565 is a wasteful number, since it uses less digits than its factorization.

42226565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6231.

The product of its digits is 28800, while the sum is 32.

The square root of 42226565 is about 6498.1970576461. The cubic root of 42226565 is about 348.2265804344.

Adding to 42226565 its reverse (56562224), we get a palindrome (98788789).

The spelling of 42226565 in words is "forty-two million, two hundred twenty-six thousand, five hundred sixty-five".