422163225 has 48 divisors (see below), whose sum is σ = 846047040. Its totient is φ = 204681600.

The previous prime is 422163221. The next prime is 422163253. The reversal of 422163225 is 522361224.

It is a happy number.

422163225 is a `hidden beast` number, since 4 + 2 + 2 + 1 + 632 + 25 = 666.

It is not a de Polignac number, because 422163225 - 2² = 422163221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (422163221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21004 + ... + 35853.

It is an arithmetic number, because the mean of its divisors is an integer number (17625980).

Almost surely, 2^422163225 is an apocalyptic number.

422163225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

422163225 is an abundant number, since it is smaller than the sum of its proper divisors (423883815).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422163225 is a wasteful number, since it uses less digits than its factorization.

422163225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56887 (or 56876 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 422163225 is about 20546.6110344261. The cubic root of 422163225 is about 750.1707611179.

The spelling of 422163225 in words is "four hundred twenty-two million, one hundred sixty-three thousand, two hundred twenty-five".