6520525870 has 32 divisors (see below), whose sum is σ = 11976571872. Its totient is φ = 2555110272.

The previous prime is 6520525861. The next prime is 6520525877. The reversal of 6520525870 is 785250256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520525877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352984 + ... + 370996.

It is an arithmetic number, because the mean of its divisors is an integer number (374267871).

Almost surely, 2^6520525870 is an apocalyptic number.

6520525870 is a deficient number, since it is larger than the sum of its proper divisors (5456046002).

6520525870 is a wasteful number, since it uses less digits than its factorization.

6520525870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18756.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 6520525870 is about 80749.7731885360. The cubic root of 6520525870 is about 1868.2179511370.

The spelling of 6520525870 in words is "six billion, five hundred twenty million, five hundred twenty-five thousand, eight hundred seventy".