503132220 has 72 divisors (see below), whose sum is σ = 1531988640. Its totient is φ = 133656960.

The previous prime is 503132213. The next prime is 503132249. The reversal of 503132220 is 22231305.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 503132193 and 503132202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43225 + ... + 53615.

It is an arithmetic number, because the mean of its divisors is an integer number (21277620).

Almost surely, 2^503132220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503132220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765994320).

503132220 is an abundant number, since it is smaller than the sum of its proper divisors (1028856420).

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

503132220 is a wasteful number, since it uses less digits than its factorization.

503132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10675 (or 10670 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 503132220 is about 22430.6089975284. The cubic root of 503132220 is about 795.3544402689.

Adding to 503132220 its reverse (22231305), we get a palindrome (525363525).

The spelling of 503132220 in words is "five hundred three million, one hundred thirty-two thousand, two hundred twenty".