55334321 has 4 divisors (see below), whose sum is σ = 63239232. Its totient is φ = 47429412.

The previous prime is 55334261. The next prime is 55334353. The reversal of 55334321 is 12343355.

55334321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 55334321 - 2¹⁰ = 55333297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55339321) 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, 3952445 + ... + 3952458.

It is an arithmetic number, because the mean of its divisors is an integer number (15809808).

Almost surely, 2^55334321 is an apocalyptic number.

It is an amenable number.

55334321 is a deficient number, since it is larger than the sum of its proper divisors (7904911).

55334321 is an equidigital number, since it uses as much as digits as its factorization.

55334321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7904910.

The product of its digits is 5400, while the sum is 26.

The square root of 55334321 is about 7438.7042554466. The cubic root of 55334321 is about 381.0642396669.

Adding to 55334321 its reverse (12343355), we get a palindrome (67677676).

It can be divided in two parts, 55334 and 321, that added together give a palindrome (55655).

The spelling of 55334321 in words is "fifty-five million, three hundred thirty-four thousand, three hundred twenty-one".