550554 has 16 divisors (see below), whose sum is σ = 1114560.
Its totient is φ = 181280.
The previous prime is 550553. The next prime is 550577. The reversal of 550554 is 455055.
It is a Curzon number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 550554.
It is not an unprimeable number, because it can be changed into a prime (550553) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19 + ... + 1049.
It is an arithmetic number, because the mean of its divisors is an integer number (69660).
2550554 is an apocalyptic number.
550554 is an abundant number, since it is smaller than the sum of its proper divisors (564006).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
550554 is a wasteful number, since it uses less digits than its factorization.
550554 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1125.
The product of its (nonzero) digits is 2500, while the sum is 24.
The square root of 550554 is about 741.9932614249.
The cubic root of 550554 is about 81.9596271611.
The spelling of 550554 in words is "five hundred fifty thousand, five hundred fifty-four".