55350321 has 8 divisors (see below), whose sum is σ = 79477440. Its totient is φ = 34061712.

The previous prime is 55350307. The next prime is 55350341. The reversal of 55350321 is 12305355.

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

It is not a de Polignac number, because 55350321 - 2⁵ = 55350289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55350291 and 55350300.

It is not an unprimeable number, because it can be changed into a prime (55350301) 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 7 ways as a sum of consecutive naturals, for example, 709581 + ... + 709658.

It is an arithmetic number, because the mean of its divisors is an integer number (9934680).

Almost surely, 2^55350321 is an apocalyptic number.

It is an amenable number.

55350321 is a deficient number, since it is larger than the sum of its proper divisors (24127119).

55350321 is a wasteful number, since it uses less digits than its factorization.

55350321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419255.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 55350321 is about 7439.7796338332. The cubic root of 55350321 is about 381.1009645552.

Adding to 55350321 its reverse (12305355), we get a palindrome (67655676).

The spelling of 55350321 in words is "fifty-five million, three hundred fifty thousand, three hundred twenty-one".