8552321 has 4 divisors (see below), whose sum is σ = 8560644. Its totient is φ = 8544000.

The previous prime is 8552293. The next prime is 8552339. The reversal of 8552321 is 1232558.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 78400 + 8473921 = 280^2 + 2911^2 .

It is a cyclic number.

It is not a de Polignac number, because 8552321 - 2¹⁰ = 8551297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8552351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2360 + ... + 4761.

It is an arithmetic number, because the mean of its divisors is an integer number (2140161).

Almost surely, 2^8552321 is an apocalyptic number.

It is an amenable number.

8552321 is a deficient number, since it is larger than the sum of its proper divisors (8323).

8552321 is a wasteful number, since it uses less digits than its factorization.

8552321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8322.

The product of its digits is 2400, while the sum is 26.

The square root of 8552321 is about 2924.4351591376. The cubic root of 8552321 is about 204.5006366513.

Adding to 8552321 its reverse (1232558), we get a palindrome (9784879).

The spelling of 8552321 in words is "eight million, five hundred fifty-two thousand, three hundred twenty-one".