6530538 has 32 divisors (see below), whose sum is σ = 15177600. Its totient is φ = 1834560.

The previous prime is 6530519. The next prime is 6530561. The reversal of 6530538 is 8350356.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1288 + ... + 3836.

It is an arithmetic number, because the mean of its divisors is an integer number (474300).

Almost surely, 2^6530538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6530538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7588800).

6530538 is an abundant number, since it is smaller than the sum of its proper divisors (8647062).

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

6530538 is a wasteful number, since it uses less digits than its factorization.

6530538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 6530538 is about 2555.4917335026. The cubic root of 6530538 is about 186.9173665236.

It can be divided in two parts, 65 and 30538, that added together give a palindrome (30603).

The spelling of 6530538 in words is "six million, five hundred thirty thousand, five hundred thirty-eight".