8321062521 has 64 divisors (see below), whose sum is σ = 12579194880. Its totient is φ = 4867568640.

The previous prime is 8321062513. The next prime is 8321062537. The reversal of 8321062521 is 1252601238.

It is not a de Polignac number, because 8321062521 - 2³ = 8321062513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8321062511) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 5357281 + ... + 5358833.

It is an arithmetic number, because the mean of its divisors is an integer number (196549920).

Almost surely, 2^8321062521 is an apocalyptic number.

It is an amenable number.

8321062521 is a deficient number, since it is larger than the sum of its proper divisors (4258132359).

8321062521 is a wasteful number, since it uses less digits than its factorization.

8321062521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 8321062521 is about 91219.8581505146. The cubic root of 8321062521 is about 2026.4050622333.

Adding to 8321062521 its reverse (1252601238), we get a palindrome (9573663759).

The spelling of 8321062521 in words is "eight billion, three hundred twenty-one million, sixty-two thousand, five hundred twenty-one".