6525215828520 has 128 divisors (see below), whose sum is σ = 19592162634240. Its totient is φ = 1738590310400.

The previous prime is 6525215828501. The next prime is 6525215828531. The reversal of 6525215828520 is 258285125256.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1223551774 + ... + 1223557106.

It is an arithmetic number, because the mean of its divisors is an integer number (153063770580).

Almost surely, 2^{6525215828520} is an apocalyptic number.

6525215828520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6525215828520 is an abundant number, since it is smaller than the sum of its proper divisors (13066946805720).

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

6525215828520 is a wasteful number, since it uses less digits than its factorization.

6525215828520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12035 (or 12031 counting only the distinct ones).

The product of its (nonzero) digits is 3840000, while the sum is 51.

The spelling of 6525215828520 in words is "six trillion, five hundred twenty-five billion, two hundred fifteen million, eight hundred twenty-eight thousand, five hundred twenty".