550898 has 4 divisors (see below), whose sum is σ = 826350. Its totient is φ = 275448.

The previous prime is 550861. The next prime is 550903. The reversal of 550898 is 898055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 452929 + 97969 = 673^2 + 313^2 .

It is an unprimeable number.

550898 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137723 + ... + 137726.

2⁵⁵⁰⁸⁹⁸ is an apocalyptic number.

550898 is a deficient number, since it is larger than the sum of its proper divisors (275452).

550898 is a wasteful number, since it uses less digits than its factorization.

550898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275451.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 550898 is about 742.2250332615. The cubic root of 550898 is about 81.9766937532.

The spelling of 550898 in words is "five hundred fifty thousand, eight hundred ninety-eight".