2205578849 has 2 divisors, whose sum is σ = 2205578850. Its totient is φ = 2205578848.

The previous prime is 2205578839. The next prime is 2205578867. The reversal of 2205578849 is 9488755022.

2205578849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2066338849 + 139240000 = 45457^2 + 11800^2 .

It is a cyclic number.

It is not a de Polignac number, because 2205578849 - 2¹² = 2205574753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2205578797 and 2205578806.

It is not a weakly prime, because it can be changed into another prime (2205578819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102789424 + 1102789425.

It is an arithmetic number, because the mean of its divisors is an integer number (1102789425).

Almost surely, 2^2205578849 is an apocalyptic number.

It is an amenable number.

2205578849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2205578849 is an equidigital number, since it uses as much as digits as its factorization.

2205578849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The square root of 2205578849 is about 46963.5906740530. The cubic root of 2205578849 is about 1301.6898830229.

The spelling of 2205578849 in words is "two billion, two hundred five million, five hundred seventy-eight thousand, eight hundred forty-nine".