422555 has 8 divisors (see below), whose sum is σ = 579552. Its totient is φ = 289728.

The previous prime is 422551. The next prime is 422557. The reversal of 422555 is 555224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 422555 - 2² = 422551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422555.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422555.

It is not an unprimeable number, because it can be changed into a prime (422551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6002 + ... + 6071.

It is an arithmetic number, because the mean of its divisors is an integer number (72444).

2⁴²²⁵⁵⁵ is an apocalyptic number.

422555 is a deficient number, since it is larger than the sum of its proper divisors (156997).

422555 is a wasteful number, since it uses less digits than its factorization.

422555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12085.

The product of its digits is 2000, while the sum is 23.

The square root of 422555 is about 650.0423063155. The cubic root of 422555 is about 75.0402746651.

Adding to 422555 its reverse (555224), we get a palindrome (977779).

The spelling of 422555 in words is "four hundred twenty-two thousand, five hundred fifty-five".