422506163 has 4 divisors (see below), whose sum is σ = 422570280. Its totient is φ = 422442048.

The previous prime is 422506157. The next prime is 422506187. The reversal of 422506163 is 361605224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422506163 is a prime.

It is a super-2 number, since 2×422506163² = 357022915545965138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422506153) 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, 20873 + ... + 35786.

It is an arithmetic number, because the mean of its divisors is an integer number (105642570).

Almost surely, 2^422506163 is an apocalyptic number.

422506163 is a deficient number, since it is larger than the sum of its proper divisors (64117).

422506163 is an equidigital number, since it uses as much as digits as its factorization.

422506163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64116.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 422506163 is about 20554.9547068341. The cubic root of 422506163 is about 750.3738361496.

The spelling of 422506163 in words is "four hundred twenty-two million, five hundred six thousand, one hundred sixty-three".