422321555 has 16 divisors (see below), whose sum is σ = 519160320. Its totient is φ = 329652192.

The previous prime is 422321507. The next prime is 422321563. The reversal of 422321555 is 555123224.

It is a cyclic number.

It is not a de Polignac number, because 422321555 - 2⁶ = 422321491 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78956 + ... + 84134.

It is an arithmetic number, because the mean of its divisors is an integer number (32447520).

Almost surely, 2^422321555 is an apocalyptic number.

422321555 is a deficient number, since it is larger than the sum of its proper divisors (96838765).

422321555 is a wasteful number, since it uses less digits than its factorization.

422321555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5578.

The product of its digits is 12000, while the sum is 29.

The square root of 422321555 is about 20550.4636200744. The cubic root of 422321555 is about 750.2645318714.

Adding to 422321555 its reverse (555123224), we get a palindrome (977444779).

The spelling of 422321555 in words is "four hundred twenty-two million, three hundred twenty-one thousand, five hundred fifty-five".