6506505 has 12 divisors (see below), whose sum is σ = 11278020. Its totient is φ = 3470112.

The previous prime is 6506491. The next prime is 6506557. The reversal of 6506505 is 5056056.

6506505 is a `hidden beast` number, since 6 + 5 + 0 + 650 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1617984 + 4888521 = 1272^2 + 2211^2 .

It is not a de Polignac number, because 6506505 - 2⁵ = 6506473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72250 + ... + 72339.

It is an arithmetic number, because the mean of its divisors is an integer number (939835).

Almost surely, 2^6506505 is an apocalyptic number.

It is an amenable number.

6506505 is a deficient number, since it is larger than the sum of its proper divisors (4771515).

6506505 is a wasteful number, since it uses less digits than its factorization.

6506505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144600 (or 144597 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 6506505 is about 2550.7851732359. The cubic root of 6506505 is about 186.6877934563.

The spelling of 6506505 in words is "six million, five hundred six thousand, five hundred five".