503306373 has 4 divisors (see below), whose sum is σ = 671075168. Its totient is φ = 335537580.

The previous prime is 503306269. The next prime is 503306383. The reversal of 503306373 is 373603305.

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 not a de Polignac number, because 503306373 - 2⁸ = 503306117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 503306373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503306383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83884393 + ... + 83884398.

It is an arithmetic number, because the mean of its divisors is an integer number (167768792).

Almost surely, 2^503306373 is an apocalyptic number.

It is an amenable number.

503306373 is a deficient number, since it is larger than the sum of its proper divisors (167768795).

503306373 is a wasteful number, since it uses less digits than its factorization.

503306373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167768794.

The product of its (nonzero) digits is 17010, while the sum is 30.

The square root of 503306373 is about 22434.4907007046. The cubic root of 503306373 is about 795.4461970530.

Adding to 503306373 its reverse (373603305), we get a palindrome (876909678).

The spelling of 503306373 in words is "five hundred three million, three hundred six thousand, three hundred seventy-three".