22007252 has 6 divisors (see below), whose sum is σ = 38512698. Its totient is φ = 11003624.

The previous prime is 22007221. The next prime is 22007257. The reversal of 22007252 is 25270022.

It can be written as a sum of positive squares in only one way, i.e., 19945156 + 2062096 = 4466^2 + 1436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22007257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2750903 + ... + 2750910.

It is an arithmetic number, because the mean of its divisors is an integer number (6418783).

Almost surely, 2^22007252 is an apocalyptic number.

It is an amenable number.

22007252 is a deficient number, since it is larger than the sum of its proper divisors (16505446).

22007252 is a wasteful number, since it uses less digits than its factorization.

22007252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5501817 (or 5501815 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 22007252 is about 4691.1887619238. The cubic root of 22007252 is about 280.2347181517.

Adding to 22007252 its reverse (25270022), we get a palindrome (47277274).

The spelling of 22007252 in words is "twenty-two million, seven thousand, two hundred fifty-two".