6659825 has 12 divisors (see below), whose sum is σ = 8297088. Its totient is φ = 5302800.

The previous prime is 6659813. The next prime is 6659833. The reversal of 6659825 is 5289566.

It is not a de Polignac number, because 6659825 - 2¹² = 6655729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6284 + ... + 7266.

It is an arithmetic number, because the mean of its divisors is an integer number (691424).

Almost surely, 2^6659825 is an apocalyptic number.

It is an amenable number.

6659825 is a deficient number, since it is larger than the sum of its proper divisors (1637263).

6659825 is a wasteful number, since it uses less digits than its factorization.

6659825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264 (or 1259 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 6659825 is about 2580.6636743288. The cubic root of 6659825 is about 188.1428011911.

The spelling of 6659825 in words is "six million, six hundred fifty-nine thousand, eight hundred twenty-five".