6651285 has 8 divisors (see below), whose sum is σ = 10642080. Its totient is φ = 3547344.

The previous prime is 6651277. The next prime is 6651317. The reversal of 6651285 is 5821566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6651285 - 2³ = 6651277 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221695 + ... + 221724.

It is an arithmetic number, because the mean of its divisors is an integer number (1330260).

Almost surely, 2^6651285 is an apocalyptic number.

It is an amenable number.

6651285 is a deficient number, since it is larger than the sum of its proper divisors (3990795).

6651285 is a wasteful number, since it uses less digits than its factorization.

6651285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443427.

The product of its digits is 14400, while the sum is 33.

The square root of 6651285 is about 2579.0085304240. The cubic root of 6651285 is about 188.0623472856.

The spelling of 6651285 in words is "six million, six hundred fifty-one thousand, two hundred eighty-five".