506503320 has 32 divisors (see below), whose sum is σ = 1519510320. Its totient is φ = 135067520.

The previous prime is 506503307. The next prime is 506503331. The reversal of 506503320 is 23305605.

It is a super-2 number, since 2×506503320² = 513091226342044800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2110311 + ... + 2110550.

Almost surely, 2^506503320 is an apocalyptic number.

It is an amenable number.

506503320 is an abundant number, since it is smaller than the sum of its proper divisors (1013007000).

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

506503320 is a wasteful number, since it uses less digits than its factorization.

506503320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220875 (or 4220871 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 506503320 is about 22505.6286293007. The cubic root of 506503320 is about 797.1268393715.

Adding to 506503320 its reverse (23305605), we get a palindrome (529808925).

The spelling of 506503320 in words is "five hundred six million, five hundred three thousand, three hundred twenty".