509093 has 4 divisors (see below), whose sum is σ = 548268. Its totient is φ = 469920.

The previous prime is 509087. The next prime is 509101. The reversal of 509093 is 390905.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 146689 + 362404 = 383^2 + 602^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-509093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509023) 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, 19568 + ... + 19593.

It is an arithmetic number, because the mean of its divisors is an integer number (137067).

2⁵⁰⁹⁰⁹³ is an apocalyptic number.

It is an amenable number.

509093 is a deficient number, since it is larger than the sum of its proper divisors (39175).

509093 is a wasteful number, since it uses less digits than its factorization.

509093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39174.

The product of its (nonzero) digits is 1215, while the sum is 26.

The square root of 509093 is about 713.5075332468. The cubic root of 509093 is about 79.8483062945.

Adding to 509093 its reverse (390905), we get a palindrome (899998).

The spelling of 509093 in words is "five hundred nine thousand, ninety-three".