6520063600 has 30 divisors (see below), whose sum is σ = 15664453760. Its totient is φ = 2608025280.

The previous prime is 6520063577. The next prime is 6520063607. The reversal of 6520063600 is 63600256.

It is a super-2 number, since 2×6520063600² = 85022458696089920000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520063607) 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 5 ways as a sum of consecutive naturals, for example, 8149680 + ... + 8150479.

Almost surely, 2^6520063600 is an apocalyptic number.

It is an amenable number.

6520063600 is an abundant number, since it is smaller than the sum of its proper divisors (9144390160).

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

6520063600 is a wasteful number, since it uses less digits than its factorization.

6520063600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16300177 (or 16300166 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 6520063600 is about 80746.9107768217. The cubic root of 6520063600 is about 1868.1738012458.

Adding to 6520063600 its reverse (63600256), we get a palindrome (6583663856).

The spelling of 6520063600 in words is "six billion, five hundred twenty million, sixty-three thousand, six hundred".