22252775 has 6 divisors (see below), whose sum is σ = 27593472. Its totient is φ = 17802200.

The previous prime is 22252771. The next prime is 22252793. The reversal of 22252775 is 57725222.

It is not a de Polignac number, because 22252775 - 2² = 22252771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22252771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 445031 + ... + 445080.

It is an arithmetic number, because the mean of its divisors is an integer number (4598912).

Almost surely, 2^22252775 is an apocalyptic number.

22252775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22252775 is a deficient number, since it is larger than the sum of its proper divisors (5340697).

22252775 is an equidigital number, since it uses as much as digits as its factorization.

22252775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890121 (or 890116 counting only the distinct ones).

The product of its digits is 19600, while the sum is 32.

The square root of 22252775 is about 4717.2847062691. The cubic root of 22252775 is about 281.2730088172.

Adding to 22252775 its reverse (57725222), we get a palindrome (79977997).

The spelling of 22252775 in words is "twenty-two million, two hundred fifty-two thousand, seven hundred seventy-five".