6505490 has 8 divisors (see below), whose sum is σ = 11709900. Its totient is φ = 2602192.

The previous prime is 6505469. The next prime is 6505501. The reversal of 6505490 is 945056.

It can be written as a sum of positive squares in 2 ways, for example, as 6416089 + 89401 = 2533^2 + 299^2 .

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

It is an alternating number because its digits alternate between even and odd.

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, 325265 + ... + 325284.

Almost surely, 2^6505490 is an apocalyptic number.

6505490 is a deficient number, since it is larger than the sum of its proper divisors (5204410).

6505490 is a wasteful number, since it uses less digits than its factorization.

6505490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650556.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 6505490 is about 2550.5862071296. The cubic root of 6505490 is about 186.6780853276.

The spelling of 6505490 in words is "six million, five hundred five thousand, four hundred ninety".