6464025 has 18 divisors (see below), whose sum is σ = 11578190. Its totient is φ = 3447360.

The previous prime is 6464021. The next prime is 6464041. The reversal of 6464025 is 5204646.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 219024 + 6245001 = 468^2 + 2499^2 .

It is not a de Polignac number, because 6464025 - 2² = 6464021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6464025.

It is not an unprimeable number, because it can be changed into a prime (6464021) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14140 + ... + 14589.

Almost surely, 2^6464025 is an apocalyptic number.

It is an amenable number.

6464025 is a deficient number, since it is larger than the sum of its proper divisors (5114165).

6464025 is a wasteful number, since it uses less digits than its factorization.

6464025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28745 (or 28737 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 6464025 is about 2542.4446896639. Note that the first 3 decimals coincide. The cubic root of 6464025 is about 186.2806204629.

The spelling of 6464025 in words is "six million, four hundred sixty-four thousand, twenty-five".