6466625 has 16 divisors (see below), whose sum is σ = 8805888. Its totient is φ = 4702000.

The previous prime is 6466597. The next prime is 6466627. The reversal of 6466625 is 5266646.

It is not a de Polignac number, because 6466625 - 2¹⁰ = 6465601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6466627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 977 + ... + 3726.

It is an arithmetic number, because the mean of its divisors is an integer number (550368).

Almost surely, 2^6466625 is an apocalyptic number.

It is an amenable number.

6466625 is a deficient number, since it is larger than the sum of its proper divisors (2339263).

6466625 is a wasteful number, since it uses less digits than its factorization.

6466625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4729 (or 4719 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 6466625 is about 2542.9559571491. The cubic root of 6466625 is about 186.3055927617.

The spelling of 6466625 in words is "six million, four hundred sixty-six thousand, six hundred twenty-five".