422244551 has 2 divisors, whose sum is σ = 422244552. Its totient is φ = 422244550.

The previous prime is 422244547. The next prime is 422244593. The reversal of 422244551 is 155442224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422244551 - 2² = 422244547 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 (422244541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211122275 + 211122276.

It is an arithmetic number, because the mean of its divisors is an integer number (211122276).

Almost surely, 2^422244551 is an apocalyptic number.

422244551 is a deficient number, since it is larger than the sum of its proper divisors (1).

422244551 is an equidigital number, since it uses as much as digits as its factorization.

422244551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12800, while the sum is 29.

The square root of 422244551 is about 20548.5900002896. The cubic root of 422244551 is about 750.2189292723.

Adding to 422244551 its reverse (155442224), we get a palindrome (577686775).

The spelling of 422244551 in words is "four hundred twenty-two million, two hundred forty-four thousand, five hundred fifty-one".