545589 has 24 divisors (see below), whose sum is σ = 893760. Its totient is φ = 328680.

The previous prime is 545579. The next prime is 545599. The reversal of 545589 is 985545.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (545579) and next prime (545599).

It is not a de Polignac number, because 545589 - 2¹⁵ = 512821 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545549) 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, 3184 + ... + 3350.

It is an arithmetic number, because the mean of its divisors is an integer number (37240).

2⁵⁴⁵⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

545589 is a deficient number, since it is larger than the sum of its proper divisors (348171).

545589 is a wasteful number, since it uses less digits than its factorization.

545589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 181 counting only the distinct ones).

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

The square root of 545589 is about 738.6399664248. The cubic root of 545589 is about 81.7125070055.

The spelling of 545589 in words is "five hundred forty-five thousand, five hundred eighty-nine".