2205500000 has 168 divisors, whose sum is σ = 5935705272. Its totient is φ = 800000000.

The previous prime is 2205499999. The next prime is 2205500009. The reversal of 2205500000 is 55022.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205500009) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5499800 + ... + 5500200.

It is an arithmetic number, because the mean of its divisors is an integer number (35331579).

Almost surely, 2^2205500000 is an apocalyptic number.

2205500000 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 2205500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2967852636).

2205500000 is an abundant number, since it is smaller than the sum of its proper divisors (3730205272).

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

2205500000 is an frugal number, since it uses more digits than its factorization.

2205500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 2205500000 is about 46962.7511970924. The cubic root of 2205500000 is about 1301.6743711209.

Adding to 2205500000 its reverse (55022), we get a palindrome (2205555022).

It can be divided in two parts, 2205 and 500000, that added together give a palindrome (502205).

The spelling of 2205500000 in words is "two billion, two hundred five million, five hundred thousand".