8067553321 has 4 divisors (see below), whose sum is σ = 8087875012. Its totient is φ = 8047231632.

The previous prime is 8067553229. The next prime is 8067553339. The reversal of 8067553321 is 1233557608.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5510835225 + 2556718096 = 74235^2 + 50564^2 .

It is a cyclic number.

It is not a de Polignac number, because 8067553321 - 2¹⁵ = 8067520553 is a prime.

It is a super-4 number, since 4×8067553321⁴ (a number of 41 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8067553381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10160250 + ... + 10161043.

It is an arithmetic number, because the mean of its divisors is an integer number (2021968753).

Almost surely, 2^8067553321 is an apocalyptic number.

It is an amenable number.

8067553321 is a deficient number, since it is larger than the sum of its proper divisors (20321691).

8067553321 is a wasteful number, since it uses less digits than its factorization.

8067553321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20321690.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 8067553321 is about 89819.5597907271. The cubic root of 8067553321 is about 2005.6136720178.

The spelling of 8067553321 in words is "eight billion, sixty-seven million, five hundred fifty-three thousand, three hundred twenty-one".