554998 has 4 divisors (see below), whose sum is σ = 832500.
Its totient is φ = 277498.
The previous prime is 554977. The next prime is 555029. The reversal of 554998 is 899455.
It is a semiprime because it is the product of two primes.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a self number, because there is not a number n which added to its sum of digits gives 554998.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138748 + ... + 138751.
It is an arithmetic number, because the mean of its divisors is an integer number (208125).
2554998 is an apocalyptic number.
554998 is a deficient number, since it is larger than the sum of its proper divisors (277502).
554998 is a wasteful number, since it uses less digits than its factorization.
554998 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 277501.
The product of its digits is 64800, while the sum is 40.
The square root of 554998 is about 744.9818789742.
The cubic root of 554998 is about 82.1795589343.
The spelling of 554998 in words is "five hundred fifty-four thousand, nine hundred ninety-eight".