55306183 has 4 divisors (see below), whose sum is σ = 55322488. Its totient is φ = 55289880.

The previous prime is 55306177. The next prime is 55306193. The reversal of 55306183 is 38160355.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55306183 - 2¹⁷ = 55175111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55306123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (13830622).

Almost surely, 2^55306183 is an apocalyptic number.

55306183 is a deficient number, since it is larger than the sum of its proper divisors (16305).

55306183 is a wasteful number, since it uses less digits than its factorization.

55306183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16304.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 55306183 is about 7436.8126909315. The cubic root of 55306183 is about 380.9996371841. Note that the first 3 decimals are identical.

The spelling of 55306183 in words is "fifty-five million, three hundred six thousand, one hundred eighty-three".