422500205 has 4 divisors (see below), whose sum is σ = 507000252. Its totient is φ = 338000160.

The previous prime is 422500189. The next prime is 422500219. The reversal of 422500205 is 502005224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 307967401 + 114532804 = 17549^2 + 10702^2 .

It is not a de Polignac number, because 422500205 - 2⁴ = 422500189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42250016 + ... + 42250025.

It is an arithmetic number, because the mean of its divisors is an integer number (126750063).

Almost surely, 2^422500205 is an apocalyptic number.

It is an amenable number.

422500205 is a deficient number, since it is larger than the sum of its proper divisors (84500047).

422500205 is an equidigital number, since it uses as much as digits as its factorization.

422500205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84500046.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 422500205 is about 20554.8097777625. The cubic root of 422500205 is about 750.3703089834.

Adding to 422500205 its reverse (502005224), we get a palindrome (924505429).

The spelling of 422500205 in words is "four hundred twenty-two million, five hundred thousand, two hundred five".