6560091 has 6 divisors (see below), whose sum is σ = 9475700. Its totient is φ = 4373388.

The previous prime is 6560069. The next prime is 6560093. The reversal of 6560091 is 1900656.

6560091 is a `hidden beast` number, since 656 + 0 + 0 + 9 + 1 = 666.

It is not a de Polignac number, because 6560091 - 2⁶ = 6560027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6560093) 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 5 ways as a sum of consecutive naturals, for example, 364441 + ... + 364458.

Almost surely, 2^6560091 is an apocalyptic number.

6560091 is a deficient number, since it is larger than the sum of its proper divisors (2915609).

6560091 is a wasteful number, since it uses less digits than its factorization.

6560091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728905 (or 728902 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 6560091 is about 2561.2674596769. The cubic root of 6560091 is about 187.1988980595.

The spelling of 6560091 in words is "six million, five hundred sixty thousand, ninety-one".