6448225 has 12 divisors (see below), whose sum is σ = 9138304. Its totient is φ = 4421520.

The previous prime is 6448223. The next prime is 6448231. The reversal of 6448225 is 5228446.

It is not a de Polignac number, because 6448225 - 2¹ = 6448223 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6448223) 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, 18249 + ... + 18598.

Almost surely, 2^6448225 is an apocalyptic number.

It is an amenable number.

6448225 is a deficient number, since it is larger than the sum of its proper divisors (2690079).

6448225 is a wasteful number, since it uses less digits than its factorization.

6448225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36864 (or 36859 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 6448225 is about 2539.3355430112. The cubic root of 6448225 is about 186.1287215500.

The spelling of 6448225 in words is "six million, four hundred forty-eight thousand, two hundred twenty-five".