6530540 has 24 divisors (see below), whose sum is σ = 13768272. Its totient is φ = 2601920.

The previous prime is 6530519. The next prime is 6530561. The reversal of 6530540 is 450356.

6530540 = 900² + 901² + ... + 907².

It is an interprime number because it is at equal distance from previous prime (6530519) and next prime (6530561).

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 7 ways as a sum of consecutive naturals, for example, 6470 + ... + 7410.

It is an arithmetic number, because the mean of its divisors is an integer number (573678).

Almost surely, 2^6530540 is an apocalyptic number.

It is an amenable number.

6530540 is an abundant number, since it is smaller than the sum of its proper divisors (7237732).

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

6530540 is a wasteful number, since it uses less digits than its factorization.

6530540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 6530540 is about 2555.4921248167. The cubic root of 6530540 is about 186.9173856050.

Adding to 6530540 its reverse (450356), we get a palindrome (6980896).

The spelling of 6530540 in words is "six million, five hundred thirty thousand, five hundred forty".