6520423202 has 12 divisors (see below), whose sum is σ = 10389810210. Its totient is φ = 3068434176.

The previous prime is 6520423187. The next prime is 6520423229. The reversal of 6520423202 is 2023240256.

It can be written as a sum of positive squares in 3 ways, for example, as 6520401001 + 22201 = 80749^2 + 149^2 .

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 5 ways as a sum of consecutive naturals, for example, 5639927 + ... + 5641082.

Almost surely, 2^6520423202 is an apocalyptic number.

6520423202 is a deficient number, since it is larger than the sum of its proper divisors (3869387008).

6520423202 is a wasteful number, since it uses less digits than its factorization.

6520423202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11281045 (or 11281028 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 6520423202 is about 80749.1374690776. The cubic root of 6520423202 is about 1868.2081458334.

Adding to 6520423202 its reverse (2023240256), we get a palindrome (8543663458).

The spelling of 6520423202 in words is "six billion, five hundred twenty million, four hundred twenty-three thousand, two hundred two".