6528453321 has 8 divisors (see below), whose sum is σ = 9374189440. Its totient is φ = 4017509712.

The previous prime is 6528453311. The next prime is 6528453353. The reversal of 6528453321 is 1233548256.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6528453321 - 2⁵ = 6528453289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 167396239 = 6528453321 / (6 + 5 + 2 + 8 + 4 + 5 + 3 + 3 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6528453321.

It is not an unprimeable number, because it can be changed into a prime (6528453311) 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, 83698081 + ... + 83698158.

It is an arithmetic number, because the mean of its divisors is an integer number (1171773680).

Almost surely, 2^6528453321 is an apocalyptic number.

It is an amenable number.

6528453321 is a deficient number, since it is larger than the sum of its proper divisors (2845736119).

6528453321 is a wasteful number, since it uses less digits than its factorization.

6528453321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167396255.

The product of its digits is 172800, while the sum is 39.

The square root of 6528453321 is about 80798.8447999104. The cubic root of 6528453321 is about 1868.9747514668.

The spelling of 6528453321 in words is "six billion, five hundred twenty-eight million, four hundred fifty-three thousand, three hundred twenty-one".