22415565 has 8 divisors (see below), whose sum is σ = 35864928. Its totient is φ = 11954960.

The previous prime is 22415543. The next prime is 22415621. The reversal of 22415565 is 56551422.

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

It is not a de Polignac number, because 22415565 - 2¹⁰ = 22414541 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 747171 + ... + 747200.

It is an arithmetic number, because the mean of its divisors is an integer number (4483116).

Almost surely, 2^22415565 is an apocalyptic number.

It is an amenable number.

22415565 is a deficient number, since it is larger than the sum of its proper divisors (13449363).

22415565 is a wasteful number, since it uses less digits than its factorization.

22415565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494379.

The product of its digits is 12000, while the sum is 30.

The square root of 22415565 is about 4734.5078941744. The cubic root of 22415565 is about 281.9572265491.

Adding to 22415565 its reverse (56551422), we get a palindrome (78966987).

The spelling of 22415565 in words is "twenty-two million, four hundred fifteen thousand, five hundred sixty-five".