6530000 has 50 divisors (see below), whose sum is σ = 15833994. Its totient is φ = 2608000.

The previous prime is 6529987. The next prime is 6530003. The reversal of 6530000 is 356.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 3474496 + 3055504 = 1864^2 + 1748^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6530003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9674 + ... + 10326.

Almost surely, 2^6530000 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 6530000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7916997).

6530000 is an abundant number, since it is smaller than the sum of its proper divisors (9303994).

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

6530000 is an equidigital number, since it uses as much as digits as its factorization.

6530000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 6530000 is about 2555.3864678361. The cubic root of 6530000 is about 186.9122334955.

Adding to 6530000 its reverse (356), we get a palindrome (6530356).

The spelling of 6530000 in words is "six million, five hundred thirty thousand".