4022555 has 4 divisors (see below), whose sum is σ = 4827072. Its totient is φ = 3218040.

The previous prime is 4022549. The next prime is 4022563. The reversal of 4022555 is 5552204.

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

It is not a de Polignac number, because 4022555 - 2¹⁰ = 4021531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4022555.

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, 402251 + ... + 402260.

It is an arithmetic number, because the mean of its divisors is an integer number (1206768).

Almost surely, 2^4022555 is an apocalyptic number.

4022555 is a deficient number, since it is larger than the sum of its proper divisors (804517).

4022555 is an equidigital number, since it uses as much as digits as its factorization.

4022555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804516.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 4022555 is about 2005.6308234568. The cubic root of 4022555 is about 159.0379114007.

Adding to 4022555 its reverse (5552204), we get a palindrome (9574759).

The spelling of 4022555 in words is "four million, twenty-two thousand, five hundred fifty-five".