822605225 has 12 divisors (see below), whose sum is σ = 1098494796. Its totient is φ = 607462080.

The previous prime is 822605221. The next prime is 822605227. The reversal of 822605225 is 522506228.

It can be written as a sum of positive squares in 6 ways, for example, as 33500944 + 789104281 = 5788^2 + 28091^2 .

It is not a de Polignac number, because 822605225 - 2² = 822605221 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 822605191 and 822605200.

It is not an unprimeable number, because it can be changed into a prime (822605221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1265222 + ... + 1265871.

It is an arithmetic number, because the mean of its divisors is an integer number (91541233).

Almost surely, 2^822605225 is an apocalyptic number.

It is an amenable number.

822605225 is a deficient number, since it is larger than the sum of its proper divisors (275889571).

822605225 is a wasteful number, since it uses less digits than its factorization.

822605225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531116 (or 2531111 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 822605225 is about 28681.0952545401. The cubic root of 822605225 is about 936.9803603224.

The spelling of 822605225 in words is "eight hundred twenty-two million, six hundred five thousand, two hundred twenty-five".