4220055 has 24 divisors (see below), whose sum is σ = 8360352. Its totient is φ = 1929024.

The previous prime is 4220053. The next prime is 4220059. The reversal of 4220055 is 5500224.

It is not a de Polignac number, because 4220055 - 2¹ = 4220053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6384 + ... + 7013.

It is an arithmetic number, because the mean of its divisors is an integer number (348348).

Almost surely, 2^4220055 is an apocalyptic number.

4220055 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4220055 is a deficient number, since it is larger than the sum of its proper divisors (4140297).

4220055 is a wasteful number, since it uses less digits than its factorization.

4220055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13415 (or 13412 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 4220055 is about 2054.2772451643. The cubic root of 4220055 is about 161.5992609964.

Adding to 4220055 its reverse (5500224), we get a palindrome (9720279).

The spelling of 4220055 in words is "four million, two hundred twenty thousand, fifty-five".