510493 has 4 divisors (see below), whose sum is σ = 540540. Its totient is φ = 480448.

The previous prime is 510481. The next prime is 510529. The reversal of 510493 is 394015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 394015 = 5 ⋅78803.

It can be written as a sum of positive squares in 2 ways, for example, as 465124 + 45369 = 682^2 + 213^2 .

It is a cyclic number.

It is not a de Polignac number, because 510493 - 2¹³ = 502301 is a prime.

It is a Smith number, since the sum of its digits (22) 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.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (510403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14998 + ... + 15031.

It is an arithmetic number, because the mean of its divisors is an integer number (135135).

2⁵¹⁰⁴⁹³ is an apocalyptic number.

It is an amenable number.

510493 is a deficient number, since it is larger than the sum of its proper divisors (30047).

510493 is a wasteful number, since it uses less digits than its factorization.

510493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30046.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 510493 is about 714.4879285194. The cubic root of 510493 is about 79.9214332828.

The spelling of 510493 in words is "five hundred ten thousand, four hundred ninety-three".