422825 has 12 divisors (see below), whose sum is σ = 565068. Its totient is φ = 312000.

The previous prime is 422803. The next prime is 422827. The reversal of 422825 is 528224.

It can be written as a sum of positive squares in 6 ways, for example, as 179776 + 243049 = 424^2 + 493^2 .

It is not a de Polignac number, because 422825 - 2⁶ = 422761 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 422825.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422827) 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 11 ways as a sum of consecutive naturals, for example, 326 + ... + 975.

It is an arithmetic number, because the mean of its divisors is an integer number (47089).

2⁴²²⁸²⁵ is an apocalyptic number.

It is an amenable number.

422825 is a deficient number, since it is larger than the sum of its proper divisors (142243).

422825 is a wasteful number, since it uses less digits than its factorization.

422825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324 (or 1319 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 422825 is about 650.2499519416. The cubic root of 422825 is about 75.0562540921.

The spelling of 422825 in words is "four hundred twenty-two thousand, eight hundred twenty-five".