555489 has 24 divisors (see below), whose sum is σ = 908544. Its totient is φ = 324000.

The previous prime is 555487. The next prime is 555491. The reversal of 555489 is 984555.

It is a happy number.

555489 is nontrivially palindromic in base 2.

555489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (555487) and next prime (555491).

It is not a de Polignac number, because 555489 - 2¹ = 555487 is a prime.

It is an Ulam number.

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 555489.

It is not an unprimeable number, because it can be changed into a prime (555487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2979 + ... + 3159.

It is an arithmetic number, because the mean of its divisors is an integer number (37856).

2⁵⁵⁵⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

555489 is a deficient number, since it is larger than the sum of its proper divisors (353055).

555489 is a wasteful number, since it uses less digits than its factorization.

555489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 226 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 555489 is about 745.3113443387. The cubic root of 555489 is about 82.2037862110.

The spelling of 555489 in words is "five hundred fifty-five thousand, four hundred eighty-nine".