8352445521 has 16 divisors (see below), whose sum is σ = 12742732800. Its totient is φ = 4767127248.

The previous prime is 8352445513. The next prime is 8352445523. The reversal of 8352445521 is 1255442538.

It is not a de Polignac number, because 8352445521 - 2³ = 8352445513 is a prime.

It is a super-2 number, since 2×8352445521² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8352445521.

It is not an unprimeable number, because it can be changed into a prime (8352445523) 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, 219411 + ... + 254648.

It is an arithmetic number, because the mean of its divisors is an integer number (796420800).

Almost surely, 2^8352445521 is an apocalyptic number.

It is an amenable number.

8352445521 is a deficient number, since it is larger than the sum of its proper divisors (4390287279).

8352445521 is a wasteful number, since it uses less digits than its factorization.

8352445521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474908.

The product of its digits is 192000, while the sum is 39.

The square root of 8352445521 is about 91391.7147284151. The cubic root of 8352445521 is about 2028.9494042817.

The spelling of 8352445521 in words is "eight billion, three hundred fifty-two million, four hundred forty-five thousand, five hundred twenty-one".