220265 has 4 divisors (see below), whose sum is σ = 264324. Its totient is φ = 176208.

The previous prime is 220243. The next prime is 220279. The reversal of 220265 is 562022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 120409 + 99856 = 347^2 + 316^2 .

It is a cyclic number.

It is not a de Polignac number, because 220265 - 2⁸ = 220009 is a prime.

It is a d-powerful number, because it can be written as 2⁸ + 2¹⁶ + 2¹⁷ + 0 + 6⁵ + 5⁶ .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22022 + ... + 22031.

It is an arithmetic number, because the mean of its divisors is an integer number (66081).

2²²⁰²⁶⁵ is an apocalyptic number.

It is an amenable number.

220265 is a deficient number, since it is larger than the sum of its proper divisors (44059).

220265 is an equidigital number, since it uses as much as digits as its factorization.

220265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44058.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 220265 is about 469.3239819144. The cubic root of 220265 is about 60.3923363521.

Adding to 220265 its reverse (562022), we get a palindrome (782287).

The spelling of 220265 in words is "two hundred twenty thousand, two hundred sixty-five".