6545985 has 8 divisors (see below), whose sum is σ = 10473600. Its totient is φ = 3491184.

The previous prime is 6545963. The next prime is 6545989. The reversal of 6545985 is 5895456.

6545985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6545985 - 2⁵ = 6545953 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6545989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218185 + ... + 218214.

It is an arithmetic number, because the mean of its divisors is an integer number (1309200).

Almost surely, 2^6545985 is an apocalyptic number.

It is an amenable number.

6545985 is a deficient number, since it is larger than the sum of its proper divisors (3927615).

6545985 is a wasteful number, since it uses less digits than its factorization.

6545985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436407.

The product of its digits is 216000, while the sum is 42.

The square root of 6545985 is about 2558.5122630154. The cubic root of 6545985 is about 187.0646253991.

The spelling of 6545985 in words is "six million, five hundred forty-five thousand, nine hundred eighty-five".