505193 has 4 divisors (see below), whose sum is σ = 544068. Its totient is φ = 466320.

The previous prime is 505187. The next prime is 505201. The reversal of 505193 is 391505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 391505 = 5 ⋅78301.

It can be written as a sum of positive squares in 2 ways, for example, as 262144 + 243049 = 512^2 + 493^2 .

It is a cyclic number.

It is not a de Polignac number, because 505193 - 2⁶ = 505129 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 505193.

It is not an unprimeable number, because it can be changed into a prime (505123) 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, 19418 + ... + 19443.

It is an arithmetic number, because the mean of its divisors is an integer number (136017).

2⁵⁰⁵¹⁹³ is an apocalyptic number.

It is an amenable number.

505193 is a deficient number, since it is larger than the sum of its proper divisors (38875).

505193 is a wasteful number, since it uses less digits than its factorization.

505193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38874.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 505193 is about 710.7693015318. The cubic root of 505193 is about 79.6438858864.

Adding to 505193 its reverse (391505), we get a palindrome (896698).

The spelling of 505193 in words is "five hundred five thousand, one hundred ninety-three".