4285666225 has 9 divisors (see below), whose sum is σ = 5314632033. Its totient is φ = 3428271120.

The previous prime is 4285666223. The next prime is 4285666237. The reversal of 4285666225 is 5226665824.

The square root of 4285666225 is 65465.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 443649969 + 3842016256 = 21063^2 + 61984^2 .

It is not a de Polignac number, because 4285666225 - 2¹ = 4285666223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4285666223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 320779 + ... + 333871.

Almost surely, 2^4285666225 is an apocalyptic number.

4285666225 is the 65465-th square number.

4285666225 is the 32733-rd centered octagonal number.

It is an amenable number.

4285666225 is a deficient number, since it is larger than the sum of its proper divisors (1028965808).

4285666225 is an frugal number, since it uses more digits than its factorization.

4285666225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26196 (or 13098 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 46.

The cubic root of 4285666225 is about 1624.3244497690.

The spelling of 4285666225 in words is "four billion, two hundred eighty-five million, six hundred sixty-six thousand, two hundred twenty-five".