3220055 has 16 divisors (see below), whose sum is σ = 4191264. Its totient is φ = 2365440.

The previous prime is 3220051. The next prime is 3220081. The reversal of 3220055 is 5500223.

It is not a de Polignac number, because 3220055 - 2² = 3220051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220051) 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, 3215 + ... + 4095.

It is an arithmetic number, because the mean of its divisors is an integer number (261954).

Almost surely, 2^3220055 is an apocalyptic number.

3220055 is a deficient number, since it is larger than the sum of its proper divisors (971209).

3220055 is a wasteful number, since it uses less digits than its factorization.

3220055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 3220055 is about 1794.4511695780. The cubic root of 3220055 is about 147.6684659462.

Adding to 3220055 its reverse (5500223), we get a palindrome (8720278).

The spelling of 3220055 in words is "three million, two hundred twenty thousand, fifty-five".