2204005545 has 240 divisors, whose sum is σ = 5005566720. Its totient is φ = 921424896.

The previous prime is 2204005541. The next prime is 2204005571. The reversal of 2204005545 is 5455004022.

2204005545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2204005545 - 2² = 2204005541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204005541) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 15856086 + ... + 15856224.

It is an arithmetic number, because the mean of its divisors is an integer number (20856528).

Almost surely, 2^2204005545 is an apocalyptic number.

It is an amenable number.

2204005545 is an abundant number, since it is smaller than the sum of its proper divisors (2801561175).

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

2204005545 is a wasteful number, since it uses less digits than its factorization.

2204005545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 2204005545 is about 46946.8374334204. The cubic root of 2204005545 is about 1301.3802982248.

Adding to 2204005545 its reverse (5455004022), we get a palindrome (7659009567).

The spelling of 2204005545 in words is "two billion, two hundred four million, five thousand, five hundred forty-five".