55303 has 4 divisors (see below), whose sum is σ = 57240. Its totient is φ = 53368.
The previous prime is 55291. The next prime is 55313. The reversal of 55303 is 30355.
It is a happy number.
55303 is nontrivially palindromic in base 6.
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 55303 - 213 = 47111 is a prime.
It is a Duffinian number.
55303 is a lucky number.
It is a plaindrome in base 15.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (55313) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925 + ... + 982.
It is an arithmetic number, because the mean of its divisors is an integer number (14310).
255303 is an apocalyptic number.
55303 is a deficient number, since it is larger than the sum of its proper divisors (1937).
55303 is a wasteful number, since it uses less digits than its factorization.
55303 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1936.
The product of its (nonzero) digits is 225, while the sum is 16.
The square root of 55303 is about 235.1658988884. The cubic root of 55303 is about 38.0992327904.
Adding to 55303 its reverse (30355), we get a palindrome (85658).
The spelling of 55303 in words is "fifty-five thousand, three hundred three".
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