503115320 has 32 divisors (see below), whose sum is σ = 1132682400. Its totient is φ = 201126528.

The previous prime is 503115293. The next prime is 503115329. The reversal of 503115320 is 23511305.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 503115292 and 503115301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503115329) 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 7 ways as a sum of consecutive naturals, for example, 99821 + ... + 104739.

It is an arithmetic number, because the mean of its divisors is an integer number (35396325).

Almost surely, 2^503115320 is an apocalyptic number.

It is an amenable number.

503115320 is an abundant number, since it is smaller than the sum of its proper divisors (629567080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503115320 is a wasteful number, since it uses less digits than its factorization.

503115320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7487 (or 7483 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 503115320 is about 22430.2322769962. The cubic root of 503115320 is about 795.3455349620.

Adding to 503115320 its reverse (23511305), we get a palindrome (526626625).

The spelling of 503115320 in words is "five hundred three million, one hundred fifteen thousand, three hundred twenty".