55343321 has 8 divisors (see below), whose sum is σ = 61102944. Its totient is φ = 49705120.

The previous prime is 55343311. The next prime is 55343369. The reversal of 55343321 is 12334355.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55343321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55343311) 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, 29396 + ... + 31221.

It is an arithmetic number, because the mean of its divisors is an integer number (7637868).

Almost surely, 2^55343321 is an apocalyptic number.

It is an amenable number.

55343321 is a deficient number, since it is larger than the sum of its proper divisors (5759623).

55343321 is a wasteful number, since it uses less digits than its factorization.

55343321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60711.

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

The square root of 55343321 is about 7439.3091749167. The cubic root of 55343321 is about 381.0848982876.

Adding to 55343321 its reverse (12334355), we get a palindrome (67677676).

The spelling of 55343321 in words is "fifty-five million, three hundred forty-three thousand, three hundred twenty-one".