3555222 has 48 divisors (see below), whose sum is σ = 8043840. Its totient is φ = 1046320.

The previous prime is 3555217. The next prime is 3555229. The reversal of 3555222 is 2225553.

It is a d-powerful number, because it can be written as 3¹³ + 5² + 5⁵ + 5⁹ + 2⁴ + 2⁹ + 2¹² .

It is a junction number, because it is equal to n+sod(n) for n = 3555192 and 3555201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3555229) 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, 42793 + ... + 42875.

It is an arithmetic number, because the mean of its divisors is an integer number (167580).

Almost surely, 2^3555222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3555222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4021920).

3555222 is an abundant number, since it is smaller than the sum of its proper divisors (4488618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3555222 is a wasteful number, since it uses less digits than its factorization.

3555222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 158 counting only the distinct ones).

The product of its digits is 3000, while the sum is 24.

The square root of 3555222 is about 1885.5296338165. The cubic root of 3555222 is about 152.6237927021.

The spelling of 3555222 in words is "three million, five hundred fifty-five thousand, two hundred twenty-two".