550553 has 2 divisors, whose sum is σ = 550554.
Its totient is φ = 550552.
The previous prime is 550541. The next prime is 550577. The reversal of 550553 is 355055.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 446224 + 104329 = 668^2 + 323^2
It is a cyclic number.
It is not a de Polignac number, because 550553 - 26 = 550489 is a prime.
It is not a weakly prime, because it can be changed into another prime (550513) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275276 + 275277.
It is an arithmetic number, because the mean of its divisors is an integer number (275277).
2550553 is an apocalyptic number.
It is an amenable number.
550553 is a deficient number, since it is larger than the sum of its proper divisors (1).
550553 is an equidigital number, since it uses as much as digits as its factorization.
550553 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1875, while the sum is 23.
The square root of 550553 is about 741.9925875641.
The cubic root of 550553 is about 81.9595775386.
The spelling of 550553 in words is "five hundred fifty thousand, five hundred fifty-three".