6520038506 has 16 divisors (see below), whose sum is σ = 10120688640. Its totient is φ = 3146550960.

The previous prime is 6520038487. The next prime is 6520038521. The reversal of 6520038506 is 6058300256.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172535 + ... + 206901.

It is an arithmetic number, because the mean of its divisors is an integer number (632543040).

Almost surely, 2^6520038506 is an apocalyptic number.

6520038506 is a deficient number, since it is larger than the sum of its proper divisors (3600650134).

6520038506 is a wasteful number, since it uses less digits than its factorization.

6520038506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37669.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 6520038506 is about 80746.7553899226. The cubic root of 6520038506 is about 1868.1714045405.

The spelling of 6520038506 in words is "six billion, five hundred twenty million, thirty-eight thousand, five hundred six".