22252757 has 2 divisors, whose sum is σ = 22252758. Its totient is φ = 22252756.

The previous prime is 22252733. The next prime is 22252771. The reversal of 22252757 is 75725222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17901361 + 4351396 = 4231^2 + 2086^2 .

It is a cyclic number.

It is not a de Polignac number, because 22252757 - 2¹² = 22248661 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22252717) 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 as a sum of consecutive naturals, namely, 11126378 + 11126379.

It is an arithmetic number, because the mean of its divisors is an integer number (11126379).

Almost surely, 2^22252757 is an apocalyptic number.

It is an amenable number.

22252757 is a deficient number, since it is larger than the sum of its proper divisors (1).

22252757 is an equidigital number, since it uses as much as digits as its factorization.

22252757 is an odious number, because the sum of its binary digits is odd.

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

The square root of 22252757 is about 4717.2827983915. The cubic root of 22252757 is about 281.2729329777.

Adding to 22252757 its reverse (75725222), we get a palindrome (97977979).

The spelling of 22252757 in words is "twenty-two million, two hundred fifty-two thousand, seven hundred fifty-seven".