220617125 has 16 divisors (see below), whose sum is σ = 282777456. Its totient is φ = 171720000.

The previous prime is 220617121. The next prime is 220617167. The reversal of 220617125 is 521716022.

220617125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 35058241 + 185558884 = 5921^2 + 13622^2 .

It is not a de Polignac number, because 220617125 - 2² = 220617121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220617094 and 220617103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220617121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19226 + ... + 28475.

It is an arithmetic number, because the mean of its divisors is an integer number (17673591).

Almost surely, 2^220617125 is an apocalyptic number.

220617125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220617125 is a deficient number, since it is larger than the sum of its proper divisors (62160331).

220617125 is an equidigital number, since it uses as much as digits as its factorization.

220617125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47753 (or 47743 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 220617125 is about 14853.1856852326. The cubic root of 220617125 is about 604.2450113755.

The spelling of 220617125 in words is "two hundred twenty million, six hundred seventeen thousand, one hundred twenty-five".