555090 has 16 divisors (see below), whose sum is σ = 1332288. Its totient is φ = 148016.

The previous prime is 555083. The next prime is 555091. The reversal of 555090 is 90555.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 555090.

It is not an unprimeable number, because it can be changed into a prime (555091) 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, 9222 + ... + 9281.

It is an arithmetic number, because the mean of its divisors is an integer number (83268).

2⁵⁵⁵⁰⁹⁰ is an apocalyptic number.

555090 is an abundant number, since it is smaller than the sum of its proper divisors (777198).

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

555090 is a wasteful number, since it uses less digits than its factorization.

555090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18513.

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

The square root of 555090 is about 745.0436228839. The cubic root of 555090 is about 82.1840995523.

It can be divided in two parts, 5550 and 90, that multiplied together give a triangular number (499500 = T₉₉₉).

The spelling of 555090 in words is "five hundred fifty-five thousand, ninety".