220503125 has 24 divisors (see below), whose sum is σ = 282497544. Its totient is φ = 172000000.

The previous prime is 220503103. The next prime is 220503133. The reversal of 220503125 is 521305022.

It can be written as a sum of positive squares in 12 ways, for example, as 217356049 + 3147076 = 14743^2 + 1774^2 .

It is not a de Polignac number, because 220503125 - 2⁶ = 220503061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220503097 and 220503106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127265 + ... + 128985.

It is an arithmetic number, because the mean of its divisors is an integer number (11770731).

Almost surely, 2^220503125 is an apocalyptic number.

220503125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220503125 is a deficient number, since it is larger than the sum of its proper divisors (61994419).

220503125 is an frugal number, since it uses more digits than its factorization.

220503125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787 (or 1767 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 220503125 is about 14849.3476287681. The cubic root of 220503125 is about 604.1409158003.

Adding to 220503125 its reverse (521305022), we get a palindrome (741808147).

The spelling of 220503125 in words is "two hundred twenty million, five hundred three thousand, one hundred twenty-five".