220443125 has 20 divisors (see below), whose sum is σ = 314824224. Its totient is φ = 151158000.

The previous prime is 220443049. The next prime is 220443163. The reversal of 220443125 is 521344022.

It is a happy number.

It is not a de Polignac number, because 220443125 - 2¹² = 220439029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220443125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20819 + ... + 29568.

Almost surely, 2^220443125 is an apocalyptic number.

220443125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220443125 is a deficient number, since it is larger than the sum of its proper divisors (94381099).

220443125 is an frugal number, since it uses more digits than its factorization.

220443125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50414 (or 50399 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 220443125 is about 14847.3272005435. The cubic root of 220443125 is about 604.0861142441.

Adding to 220443125 its reverse (521344022), we get a palindrome (741787147).

The spelling of 220443125 in words is "two hundred twenty million, four hundred forty-three thousand, one hundred twenty-five".