422552549 has 2 divisors, whose sum is σ = 422552550. Its totient is φ = 422552548.

The previous prime is 422552531. The next prime is 422552563. The reversal of 422552549 is 945255224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 292752100 + 129800449 = 17110^2 + 11393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422552549 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 (422552569) 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, 211276274 + 211276275.

It is an arithmetic number, because the mean of its divisors is an integer number (211276275).

Almost surely, 2^422552549 is an apocalyptic number.

It is an amenable number.

422552549 is a deficient number, since it is larger than the sum of its proper divisors (1).

422552549 is an equidigital number, since it uses as much as digits as its factorization.

422552549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144000, while the sum is 38.

The square root of 422552549 is about 20556.0830169563. The cubic root of 422552549 is about 750.4012957625.

The spelling of 422552549 in words is "four hundred twenty-two million, five hundred fifty-two thousand, five hundred forty-nine".