2205355544 has 64 divisors (see below), whose sum is σ = 4833024000. Its totient is φ = 943034400.

The previous prime is 2205355507. The next prime is 2205355561. The reversal of 2205355544 is 4455535022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2224889 + ... + 2225879.

It is an arithmetic number, because the mean of its divisors is an integer number (75516000).

Almost surely, 2^2205355544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2205355544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2416512000).

2205355544 is an abundant number, since it is smaller than the sum of its proper divisors (2627668456).

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

2205355544 is an equidigital number, since it uses as much as digits as its factorization.

2205355544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829 (or 1811 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 35.

The square root of 2205355544 is about 46961.2131870547. The cubic root of 2205355544 is about 1301.6459514461.

The spelling of 2205355544 in words is "two billion, two hundred five million, three hundred fifty-five thousand, five hundred forty-four".