550590 has 16 divisors (see below), whose sum is σ = 1321488. Its totient is φ = 146816.

The previous prime is 550577. The next prime is 550607. The reversal of 550590 is 95055.

It is a self number, because there is not a number n which added to its sum of digits gives 550590.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 550590.

It is an unprimeable 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 in 7 ways as a sum of consecutive naturals, for example, 9147 + ... + 9206.

It is an arithmetic number, because the mean of its divisors is an integer number (82593).

2⁵⁵⁰⁵⁹⁰ is an apocalyptic number.

550590 is an abundant number, since it is smaller than the sum of its proper divisors (770898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550590 is a wasteful number, since it uses less digits than its factorization.

550590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18363.

The product of its (nonzero) digits is 1125, while the sum is 24.

The square root of 550590 is about 742.0175200088. The cubic root of 550590 is about 81.9614135328.

Subtracting from 550590 its reverse (95055), we obtain a triangular number (455535 = T₉₅₄).

The spelling of 550590 in words is "five hundred fifty thousand, five hundred ninety".