6505655 has 12 divisors (see below), whose sum is σ = 8454600. Its totient is φ = 4803552.

The previous prime is 6505649. The next prime is 6505663. The reversal of 6505655 is 5565056.

It is not a de Polignac number, because 6505655 - 2¹⁴ = 6489271 is a prime.

It is a congruent number.

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, 3005 + ... + 4694.

It is an arithmetic number, because the mean of its divisors is an integer number (704550).

Almost surely, 2^6505655 is an apocalyptic number.

6505655 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6505655 is a deficient number, since it is larger than the sum of its proper divisors (1948945).

6505655 is a wasteful number, since it uses less digits than its factorization.

6505655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7730 (or 7717 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 6505655 is about 2550.6185524300. The cubic root of 6505655 is about 186.6796635650.

The spelling of 6505655 in words is "six million, five hundred five thousand, six hundred fifty-five".