55324217 has 8 divisors (see below), whose sum is σ = 60848256. Its totient is φ = 49981392.

The previous prime is 55324207. The next prime is 55324271. The reversal of 55324217 is 71242355.

It is a happy number.

55324217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55324217 - 2⁶ = 55324153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55324217.

It is not an unprimeable number, because it can be changed into a prime (55324207) 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 7 ways as a sum of consecutive naturals, for example, 44663 + ... + 45884.

It is an arithmetic number, because the mean of its divisors is an integer number (7606032).

Almost surely, 2^55324217 is an apocalyptic number.

It is an amenable number.

55324217 is a deficient number, since it is larger than the sum of its proper divisors (5524039).

55324217 is a wasteful number, since it uses less digits than its factorization.

55324217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90607.

The product of its digits is 8400, while the sum is 29.

The square root of 55324217 is about 7438.0250739023. The cubic root of 55324217 is about 381.0410442529.

The spelling of 55324217 in words is "fifty-five million, three hundred twenty-four thousand, two hundred seventeen".