6651875 has 20 divisors (see below), whose sum is σ = 8622240. Its totient is φ = 5124000.

The previous prime is 6651857. The next prime is 6651907. The reversal of 6651875 is 5781566.

It is a happy number.

It is not a de Polignac number, because 6651875 - 2¹² = 6647779 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17942 + ... + 18308.

It is an arithmetic number, because the mean of its divisors is an integer number (431112).

Almost surely, 2^6651875 is an apocalyptic number.

6651875 is a deficient number, since it is larger than the sum of its proper divisors (1970365).

6651875 is an equidigital number, since it uses as much as digits as its factorization.

6651875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 401 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The square root of 6651875 is about 2579.1229129299. The cubic root of 6651875 is about 188.0679077903.

The spelling of 6651875 in words is "six million, six hundred fifty-one thousand, eight hundred seventy-five".