22552215 has 16 divisors (see below), whose sum is σ = 41238528. Its totient is φ = 10309536.

The previous prime is 22552199. The next prime is 22552237. The reversal of 22552215 is 51225522.

It is not a de Polignac number, because 22552215 - 2⁴ = 22552199 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107287 + ... + 107496.

It is an arithmetic number, because the mean of its divisors is an integer number (2577408).

Almost surely, 2^22552215 is an apocalyptic number.

22552215 is a deficient number, since it is larger than the sum of its proper divisors (18686313).

22552215 is a wasteful number, since it uses less digits than its factorization.

22552215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214798.

The product of its digits is 2000, while the sum is 24.

The square root of 22552215 is about 4748.9172450149. The cubic root of 22552215 is about 282.5290230447.

Adding to 22552215 its reverse (51225522), we get a palindrome (73777737).

The spelling of 22552215 in words is "twenty-two million, five hundred fifty-two thousand, two hundred fifteen".