22253437 has 2 divisors, whose sum is σ = 22253438. Its totient is φ = 22253436.

The previous prime is 22253423. The next prime is 22253501. The reversal of 22253437 is 73435222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20985561 + 1267876 = 4581^2 + 1126^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22253437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22253417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11126718 + 11126719.

It is an arithmetic number, because the mean of its divisors is an integer number (11126719).

Almost surely, 2^22253437 is an apocalyptic number.

It is an amenable number.

22253437 is a deficient number, since it is larger than the sum of its proper divisors (1).

22253437 is an equidigital number, since it uses as much as digits as its factorization.

22253437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 28.

The square root of 22253437 is about 4717.3548732314. The cubic root of 22253437 is about 281.2757979957.

Adding to 22253437 its reverse (73435222), we get a palindrome (95688659).

The spelling of 22253437 in words is "twenty-two million, two hundred fifty-three thousand, four hundred thirty-seven".