422430553 has 4 divisors (see below), whose sum is σ = 444663760. Its totient is φ = 400197348.

The previous prime is 422430539. The next prime is 422430557. The reversal of 422430553 is 355034224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 422430553 - 2¹³ = 422422361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422430557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11116575 + ... + 11116612.

It is an arithmetic number, because the mean of its divisors is an integer number (111165940).

Almost surely, 2^422430553 is an apocalyptic number.

It is an amenable number.

422430553 is a deficient number, since it is larger than the sum of its proper divisors (22233207).

422430553 is a wasteful number, since it uses less digits than its factorization.

422430553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22233206.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 422430553 is about 20553.1154086187. The cubic root of 422430553 is about 750.3290721868.

Adding to 422430553 its reverse (355034224), we get a palindrome (777464777).

The spelling of 422430553 in words is "four hundred twenty-two million, four hundred thirty thousand, five hundred fifty-three".