8403664225 has 48 divisors (see below), whose sum is σ = 11811744000. Its totient is φ = 5874982400.

The previous prime is 8403664189. The next prime is 8403664229. The reversal of 8403664225 is 5224663048.

8403664225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8403664225 - 2¹¹ = 8403662177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8403664229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1903821 + ... + 1908229.

It is an arithmetic number, because the mean of its divisors is an integer number (246078000).

Almost surely, 2^8403664225 is an apocalyptic number.

It is an amenable number.

8403664225 is a deficient number, since it is larger than the sum of its proper divisors (3408079775).

8403664225 is a wasteful number, since it uses less digits than its factorization.

8403664225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4698 (or 4693 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

The square root of 8403664225 is about 91671.5017058191. The cubic root of 8403664225 is about 2033.0882504183.

The spelling of 8403664225 in words is "eight billion, four hundred three million, six hundred sixty-four thousand, two hundred twenty-five".