6669025 has 12 divisors (see below), whose sum is σ = 9021744. Its totient is φ = 4850000.

The previous prime is 6669017. The next prime is 6669029. The reversal of 6669025 is 5209666.

It is not a de Polignac number, because 6669025 - 2³ = 6669017 is a prime.

It is a Duffinian number.

6669025 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6669029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11851 + ... + 12400.

It is an arithmetic number, because the mean of its divisors is an integer number (751812).

Almost surely, 2^6669025 is an apocalyptic number.

It is an amenable number.

6669025 is a deficient number, since it is larger than the sum of its proper divisors (2352719).

6669025 is a wasteful number, since it uses less digits than its factorization.

6669025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24272 (or 24267 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 6669025 is about 2582.4455463765. The cubic root of 6669025 is about 188.2293959262.

The spelling of 6669025 in words is "six million, six hundred sixty-nine thousand, twenty-five".