6505564 has 12 divisors (see below), whose sum is σ = 12260584. Its totient is φ = 3002544.

The previous prime is 6505559. The next prime is 6505607. The reversal of 6505564 is 4655056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62502 + ... + 62605.

Almost surely, 2^6505564 is an apocalyptic number.

It is an amenable number.

6505564 is a deficient number, since it is larger than the sum of its proper divisors (5755020).

6505564 is a wasteful number, since it uses less digits than its factorization.

6505564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125124 (or 125122 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 6505564 is about 2550.6007135575. The cubic root of 6505564 is about 186.6787931464.

The spelling of 6505564 in words is "six million, five hundred five thousand, five hundred sixty-four".