220445125 has 32 divisors (see below), whose sum is σ = 292780800. Its totient is φ = 165240000.

The previous prime is 220445117. The next prime is 220445143. The reversal of 220445125 is 521544022.

It is not a de Polignac number, because 220445125 - 2³ = 220445117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 220445125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239416 + ... + 240334.

It is an arithmetic number, because the mean of its divisors is an integer number (9149400).

Almost surely, 2^220445125 is an apocalyptic number.

220445125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220445125 is a deficient number, since it is larger than the sum of its proper divisors (72335675).

220445125 is a wasteful number, since it uses less digits than its factorization.

220445125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 220445125 is about 14847.3945525806. The cubic root of 220445125 is about 604.0879411228.

Adding to 220445125 its reverse (521544022), we get a palindrome (741989147).

The spelling of 220445125 in words is "two hundred twenty million, four hundred forty-five thousand, one hundred twenty-five".