22225617 has 16 divisors (see below), whose sum is σ = 33065280. Its totient is φ = 14754816.

The previous prime is 22225607. The next prime is 22225639. The reversal of 22225617 is 71652222.

22225617 is a `hidden beast` number, since 2 + 22 + 25 + 617 = 666.

It is not a de Polignac number, because 22225617 - 2⁴ = 22225601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22225607) 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 15 ways as a sum of consecutive naturals, for example, 5338 + ... + 8540.

It is an arithmetic number, because the mean of its divisors is an integer number (2066580).

Almost surely, 2^22225617 is an apocalyptic number.

22225617 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

22225617 is a deficient number, since it is larger than the sum of its proper divisors (10839663).

22225617 is a wasteful number, since it uses less digits than its factorization.

22225617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469 (or 3463 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 22225617 is about 4714.4052647179. The cubic root of 22225617 is about 281.1585373706.

Adding to 22225617 its reverse (71652222), we get a palindrome (93877839).

The spelling of 22225617 in words is "twenty-two million, two hundred twenty-five thousand, six hundred seventeen".