4225665225 has 72 divisors (see below), whose sum is σ = 7408518880. Its totient is φ = 2124714240.

The previous prime is 4225665203. The next prime is 4225665229. The reversal of 4225665225 is 5225665224.

It is not a de Polignac number, because 4225665225 - 2⁷ = 4225665097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4225665229) 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 71 ways as a sum of consecutive naturals, for example, 2895546 + ... + 2897004.

Almost surely, 2^4225665225 is an apocalyptic number.

It is an amenable number.

4225665225 is a deficient number, since it is larger than the sum of its proper divisors (3182853655).

4225665225 is a wasteful number, since it uses less digits than its factorization.

4225665225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1563 counting only the distinct ones).

The product of its digits is 288000, while the sum is 39.

The square root of 4225665225 is about 65005.1169139784. The cubic root of 4225665225 is about 1616.7084037595.

Subtracting 4225665225 from its reverse (5225665224), we obtain a palindrome (999999999).

The spelling of 4225665225 in words is "four billion, two hundred twenty-five million, six hundred sixty-five thousand, two hundred twenty-five".