2204740561 has 2 divisors, whose sum is σ = 2204740562. Its totient is φ = 2204740560.

The previous prime is 2204740529. The next prime is 2204740579. The reversal of 2204740561 is 1650474022.

2204740561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2158159936 + 46580625 = 46456^2 + 6825^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204740561 - 2⁵ = 2204740529 is a prime.

It is not a weakly prime, because it can be changed into another prime (2204740501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102370280 + 1102370281.

It is an arithmetic number, because the mean of its divisors is an integer number (1102370281).

Almost surely, 2^2204740561 is an apocalyptic number.

It is an amenable number.

2204740561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2204740561 is an equidigital number, since it uses as much as digits as its factorization.

2204740561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 2204740561 is about 46954.6649546134. The cubic root of 2204740561 is about 1301.5249483492.

The spelling of 2204740561 in words is "two billion, two hundred four million, seven hundred forty thousand, five hundred sixty-one".