6520525636 has 24 divisors (see below), whose sum is σ = 11667591936. Its totient is φ = 3187093440.

The previous prime is 6520525607. The next prime is 6520525657. The reversal of 6520525636 is 6365250256.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140881 + ... + 181351.

It is an arithmetic number, because the mean of its divisors is an integer number (486149664).

Almost surely, 2^6520525636 is an apocalyptic number.

It is an amenable number.

6520525636 is a deficient number, since it is larger than the sum of its proper divisors (5147066300).

6520525636 is a wasteful number, since it uses less digits than its factorization.

6520525636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41379 (or 41377 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 40.

The square root of 6520525636 is about 80749.7717396155. The cubic root of 6520525636 is about 1868.2179287889.

The spelling of 6520525636 in words is "six billion, five hundred twenty million, five hundred twenty-five thousand, six hundred thirty-six".