4225257664 has 14 divisors (see below), whose sum is σ = 8384495804. Its totient is φ = 2112628800.

The previous prime is 4225257581. The next prime is 4225257667. The reversal of 4225257664 is 4667525224.

It is a self number, because there is not a number n which added to its sum of digits gives 4225257664.

It is not an unprimeable number, because it can be changed into a prime (4225257667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33009762 + ... + 33009889.

Almost surely, 2^4225257664 is an apocalyptic number.

It is an amenable number.

4225257664 is a deficient number, since it is larger than the sum of its proper divisors (4159238140).

4225257664 is an equidigital number, since it uses as much as digits as its factorization.

4225257664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66019663 (or 66019653 counting only the distinct ones).

The product of its digits is 806400, while the sum is 43.

The square root of 4225257664 is about 65001.9820005513. The cubic root of 4225257664 is about 1616.6564254757.

The spelling of 4225257664 in words is "four billion, two hundred twenty-five million, two hundred fifty-seven thousand, six hundred sixty-four".