22425423437 has 2 divisors, whose sum is σ = 22425423438. Its totient is φ = 22425423436.

The previous prime is 22425423421. The next prime is 22425423439. The reversal of 22425423437 is 73432452422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13075693801 + 9349729636 = 114349^2 + 96694^2 .

It is a cyclic number.

It is not a de Polignac number, because 22425423437 - 2⁴ = 22425423421 is a prime.

Together with 22425423439, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22425423437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22425423439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11212711718 + 11212711719.

It is an arithmetic number, because the mean of its divisors is an integer number (11212711719).

Almost surely, 2^22425423437 is an apocalyptic number.

It is an amenable number.

22425423437 is a deficient number, since it is larger than the sum of its proper divisors (1).

22425423437 is an equidigital number, since it uses as much as digits as its factorization.

22425423437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 38.

Adding to 22425423437 its reverse (73432452422), we get a palindrome (95857875859).

The spelling of 22425423437 in words is "twenty-two billion, four hundred twenty-five million, four hundred twenty-three thousand, four hundred thirty-seven".