2225543320 has 384 divisors, whose sum is σ = 7035678720. Its totient is φ = 615859200.

The previous prime is 2225543311. The next prime is 2225543329. The reversal of 2225543320 is 233455222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2225543311) and next prime (2225543329).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225543329) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13653559 + ... + 13653721.

It is an arithmetic number, because the mean of its divisors is an integer number (18322080).

Almost surely, 2^2225543320 is an apocalyptic number.

2225543320 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 2225543320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3517839360).

2225543320 is an abundant number, since it is smaller than the sum of its proper divisors (4810135400).

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

2225543320 is a wasteful number, since it uses less digits than its factorization.

2225543320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 2225543320 is about 47175.6644892258. The cubic root of 2225543320 is about 1305.6056397211.

Adding to 2225543320 its reverse (233455222), we get a palindrome (2458998542).

It can be divided in two parts, 2225 and 543320, that added together give a palindrome (545545).

The spelling of 2225543320 in words is "two billion, two hundred twenty-five million, five hundred forty-three thousand, three hundred twenty".