6528484921 has 4 divisors (see below), whose sum is σ = 7461125632. Its totient is φ = 5595844212.

The previous prime is 6528484903. The next prime is 6528484927. The reversal of 6528484921 is 1294848256.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6528484921 - 2⁵ = 6528484889 is a prime.

It is a super-2 number, since 2×6528484921² = 85242230727448752482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6528484927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466320345 + ... + 466320358.

It is an arithmetic number, because the mean of its divisors is an integer number (1865281408).

Almost surely, 2^6528484921 is an apocalyptic number.

It is an amenable number.

6528484921 is a deficient number, since it is larger than the sum of its proper divisors (932640711).

6528484921 is an equidigital number, since it uses as much as digits as its factorization.

6528484921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932640710.

The product of its digits is 1105920, while the sum is 49.

The square root of 6528484921 is about 80799.0403470239. The cubic root of 6528484921 is about 1868.9777669593.

The spelling of 6528484921 in words is "six billion, five hundred twenty-eight million, four hundred eighty-four thousand, nine hundred twenty-one".