422732551 has 2 divisors, whose sum is σ = 422732552. Its totient is φ = 422732550.

The previous prime is 422732549. The next prime is 422732573. The reversal of 422732551 is 155237224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422732551 - 2¹ = 422732549 is a prime.

Together with 422732549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422736551) 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, 211366275 + 211366276.

It is an arithmetic number, because the mean of its divisors is an integer number (211366276).

Almost surely, 2^422732551 is an apocalyptic number.

422732551 is a deficient number, since it is larger than the sum of its proper divisors (1).

422732551 is an equidigital number, since it uses as much as digits as its factorization.

422732551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 31.

The square root of 422732551 is about 20560.4608654573. The cubic root of 422732551 is about 750.5078344317.

Adding to 422732551 its reverse (155237224), we get a palindrome (577969775).

The spelling of 422732551 in words is "four hundred twenty-two million, seven hundred thirty-two thousand, five hundred fifty-one".