6528212525 has 12 divisors (see below), whose sum is σ = 8109799392. Its totient is φ = 5213011440.

The previous prime is 6528212501. The next prime is 6528212557. The reversal of 6528212525 is 5252128256.

It is a happy number.

It is not a de Polignac number, because 6528212525 - 2⁶ = 6528212461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225017 + ... + 252366.

It is an arithmetic number, because the mean of its divisors is an integer number (675816616).

Almost surely, 2^6528212525 is an apocalyptic number.

It is an amenable number.

6528212525 is a deficient number, since it is larger than the sum of its proper divisors (1581586867).

6528212525 is a wasteful number, since it uses less digits than its factorization.

6528212525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477940 (or 477935 counting only the distinct ones).

The product of its digits is 96000, while the sum is 38.

The square root of 6528212525 is about 80797.3546906085. The cubic root of 6528212525 is about 1868.9517727124.

The spelling of 6528212525 in words is "six billion, five hundred twenty-eight million, two hundred twelve thousand, five hundred twenty-five".