5553 has 6 divisors (see below), whose sum is σ = 8034.
Its totient is φ = 3696.
The previous prime is 5531. The next prime is 5557. The reversal of 5553 is 3555.
5553 is nontrivially palindromic in base 7.
It can be written as a sum of positive squares in only one way, i.e., 3249 + 2304 = 57^2 + 48^2
It is not a de Polignac number, because 5553 - 25 = 5521 is a prime.
It is a nialpdrome in base 9 and base 10.
It is not an unprimeable number, because it can be changed into a prime (5557) 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 5 ways as a sum of consecutive naturals, for example, 300 + ... + 317.
It is an arithmetic number, because the mean of its divisors is an integer number (1339).
It is an amenable number.
5553 is a deficient number, since it is larger than the sum of its proper divisors (2481).
5553 is a wasteful number, since it uses less digits than its factorization.
5553 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 623 (or 620 counting only the distinct ones).
The product of its digits is 375, while the sum is 18.
The square root of 5553 is about 74.5184540902.
The cubic root of 5553 is about 17.7082600535.
The spelling of 5553 in words is "five thousand, five hundred fifty-three".