2205542000 has 80 divisors (see below), whose sum is σ = 5433884352. Its totient is φ = 865529600.

The previous prime is 2205541997. The next prime is 2205542011. The reversal of 2205542000 is 2455022.

2205542000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95597 + ... + 116403.

Almost surely, 2^2205542000 is an apocalyptic number.

2205542000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2205542000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2716942176).

2205542000 is an abundant number, since it is smaller than the sum of its proper divisors (3228342352).

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

2205542000 is a wasteful number, since it uses less digits than its factorization.

2205542000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20883 (or 20867 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 2205542000 is about 46963.1983578631. The cubic root of 2205542000 is about 1301.6826337940.

Adding to 2205542000 its reverse (2455022), we get a palindrome (2207997022).

The spelling of 2205542000 in words is "two billion, two hundred five million, five hundred forty-two thousand".