6560000 has 90 divisors (see below), whose sum is σ = 16761822. Its totient is φ = 2560000.

The previous prime is 6559981. The next prime is 6560017. The reversal of 6560000 is 656.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 4393216 + 2166784 = 2096^2 + 1472^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 159980 + ... + 160020.

Almost surely, 2^6560000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6560000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8380911).

6560000 is an abundant number, since it is smaller than the sum of its proper divisors (10201822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6560000 is an frugal number, since it uses more digits than its factorization.

6560000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 6560000 is about 2561.2496949731. The cubic root of 6560000 is about 187.1980324628.

Adding to 6560000 its reverse (656), we get a palindrome (6560656).

Multiplying 6560000 by its reverse (656), we get a square (4303360000 = 65600²).

6560000 divided by its reverse (656) gives a 4-th power (10000 = 10⁴).

The spelling of 6560000 in words is "six million, five hundred sixty thousand".