545593 has 4 divisors (see below), whose sum is σ = 550800. Its totient is φ = 540388.

The previous prime is 545579. The next prime is 545599. The reversal of 545593 is 395545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 545593 - 2¹³ = 537401 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

545593 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (545599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2443 + ... + 2656.

It is an arithmetic number, because the mean of its divisors is an integer number (137700).

2⁵⁴⁵⁵⁹³ is an apocalyptic number.

It is an amenable number.

545593 is a deficient number, since it is larger than the sum of its proper divisors (5207).

545593 is a wasteful number, since it uses less digits than its factorization.

545593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206.

The product of its digits is 13500, while the sum is 31.

The square root of 545593 is about 738.6426740989. The cubic root of 545593 is about 81.7127066975.

The spelling of 545593 in words is "five hundred forty-five thousand, five hundred ninety-three".