22252752 has 40 divisors (see below), whose sum is σ = 63874880. Its totient is φ = 7417440.

The previous prime is 22252733. The next prime is 22252757. The reversal of 22252752 is 25725222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22252757) 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 7 ways as a sum of consecutive naturals, for example, 25324 + ... + 26187.

It is an arithmetic number, because the mean of its divisors is an integer number (1596872).

Almost surely, 2^22252752 is an apocalyptic number.

It is an amenable number.

22252752 is an abundant number, since it is smaller than the sum of its proper divisors (41622128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22252752 is a wasteful number, since it uses less digits than its factorization.

22252752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51528 (or 51516 counting only the distinct ones).

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

The square root of 22252752 is about 4717.2822684253. The cubic root of 22252752 is about 281.2729119112.

Adding to 22252752 its reverse (25725222), we get a palindrome (47977974).

The spelling of 22252752 in words is "twenty-two million, two hundred fifty-two thousand, seven hundred fifty-two".