6528820540 has 24 divisors (see below), whose sum is σ = 14956934832. Its totient is φ = 2374116480.

The previous prime is 6528820517. The next prime is 6528820541. The reversal of 6528820540 is 450288256.

It is a junction number, because it is equal to n+sod(n) for n = 6528820493 and 6528820502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6528820541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14838009 + ... + 14838448.

It is an arithmetic number, because the mean of its divisors is an integer number (623205618).

Almost surely, 2^6528820540 is an apocalyptic number.

It is an amenable number.

6528820540 is an abundant number, since it is smaller than the sum of its proper divisors (8428114292).

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

6528820540 is a wasteful number, since it uses less digits than its factorization.

6528820540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29676477 (or 29676475 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 6528820540 is about 80801.1171952467. The cubic root of 6528820540 is about 1869.0097934662.

The spelling of 6528820540 in words is "six billion, five hundred twenty-eight million, eight hundred twenty thousand, five hundred forty".