6669825 has 24 divisors (see below), whose sum is σ = 11139168. Its totient is φ = 3521280.

The previous prime is 6669809. The next prime is 6669827. The reversal of 6669825 is 5289666.

It is not a de Polignac number, because 6669825 - 2⁴ = 6669809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6669827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8082 + ... + 8868.

It is an arithmetic number, because the mean of its divisors is an integer number (464132).

Almost surely, 2^6669825 is an apocalyptic number.

It is an amenable number.

6669825 is a deficient number, since it is larger than the sum of its proper divisors (4469343).

6669825 is a wasteful number, since it uses less digits than its factorization.

6669825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913 (or 908 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 6669825 is about 2582.6004336715. The cubic root of 6669825 is about 188.2369221386.

The spelling of 6669825 in words is "six million, six hundred sixty-nine thousand, eight hundred twenty-five".