503345133 has 24 divisors (see below), whose sum is σ = 759702528. Its totient is φ = 320535072.

The previous prime is 503345123. The next prime is 503345177. The reversal of 503345133 is 331543305.

It is a happy number.

It is not a de Polignac number, because 503345133 - 2¹⁶ = 503279597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 503345097 and 503345106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503345113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223891 + ... + 226127.

It is an arithmetic number, because the mean of its divisors is an integer number (31654272).

Almost surely, 2^503345133 is an apocalyptic number.

It is an amenable number.

503345133 is a deficient number, since it is larger than the sum of its proper divisors (256357395).

503345133 is a wasteful number, since it uses less digits than its factorization.

503345133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353 (or 3350 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

The square root of 503345133 is about 22435.3545325230. The cubic root of 503345133 is about 795.4666158309.

Adding to 503345133 its reverse (331543305), we get a palindrome (834888438).

The spelling of 503345133 in words is "five hundred three million, three hundred forty-five thousand, one hundred thirty-three".