6501580 has 12 divisors (see below), whose sum is σ = 13653360. Its totient is φ = 2600624.

The previous prime is 6501569. The next prime is 6501587. The reversal of 6501580 is 851056.

It is not an unprimeable number, because it can be changed into a prime (6501587) 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 3 ways as a sum of consecutive naturals, for example, 162520 + ... + 162559.

It is an arithmetic number, because the mean of its divisors is an integer number (1137780).

Almost surely, 2^6501580 is an apocalyptic number.

It is an amenable number.

6501580 is an abundant number, since it is smaller than the sum of its proper divisors (7151780).

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

6501580 is a wasteful number, since it uses less digits than its factorization.

6501580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325088 (or 325086 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 6501580 is about 2549.8196014620. The cubic root of 6501580 is about 186.6406780713.

The spelling of 6501580 in words is "six million, five hundred one thousand, five hundred eighty".