500320135503 has 16 divisors (see below), whose sum is σ = 752277928960. Its totient is φ = 328568446008.

The previous prime is 500320135501. The next prime is 500320135507. The reversal of 500320135503 is 305531023005.

500320135503 is a `hidden beast` number, since 5 + 0 + 0 + 3 + 20 + 135 + 503 = 666.

It is not a de Polignac number, because 500320135503 - 2¹ = 500320135501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500320135501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138284575 + ... + 138288192.

It is an arithmetic number, because the mean of its divisors is an integer number (47017370560).

Almost surely, 2^500320135503 is an apocalyptic number.

500320135503 is a deficient number, since it is larger than the sum of its proper divisors (251957793457).

500320135503 is a wasteful number, since it uses less digits than its factorization.

500320135503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276572843 (or 276572837 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

Adding to 500320135503 its reverse (305531023005), we get a palindrome (805851158508).

The spelling of 500320135503 in words is "five hundred billion, three hundred twenty million, one hundred thirty-five thousand, five hundred three".