22225527 has 12 divisors (see below), whose sum is σ = 32144424. Its totient is φ = 14798160.

The previous prime is 22225519. The next prime is 22225537. The reversal of 22225527 is 72552222.

It is not a de Polignac number, because 22225527 - 2³ = 22225519 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22225527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22225517) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 12973 + ... + 14585.

It is an arithmetic number, because the mean of its divisors is an integer number (2678702).

Almost surely, 2^22225527 is an apocalyptic number.

22225527 is a deficient number, since it is larger than the sum of its proper divisors (9918897).

22225527 is a wasteful number, since it uses less digits than its factorization.

22225527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150 (or 3147 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 22225527 is about 4714.3957194958. The cubic root of 22225527 is about 281.1581578641.

Adding to 22225527 its reverse (72552222), we get a palindrome (94777749).

The spelling of 22225527 in words is "twenty-two million, two hundred twenty-five thousand, five hundred twenty-seven".