4115422561 has 2 divisors, whose sum is σ = 4115422562. Its totient is φ = 4115422560.

The previous prime is 4115422547. The next prime is 4115422573. The reversal of 4115422561 is 1652245114.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3821094225 + 294328336 = 61815^2 + 17156^2 .

It is a cyclic number.

It is not a de Polignac number, because 4115422561 - 2⁵ = 4115422529 is a prime.

It is not a weakly prime, because it can be changed into another prime (4115422541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2057711280 + 2057711281.

It is an arithmetic number, because the mean of its divisors is an integer number (2057711281).

Almost surely, 2^4115422561 is an apocalyptic number.

It is an amenable number.

4115422561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4115422561 is an equidigital number, since it uses as much as digits as its factorization.

4115422561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9600, while the sum is 31.

The square root of 4115422561 is about 64151.5593029507. The cubic root of 4115422561 is about 1602.5249924589.

Adding to 4115422561 its reverse (1652245114), we get a palindrome (5767667675).

The spelling of 4115422561 in words is "four billion, one hundred fifteen million, four hundred twenty-two thousand, five hundred sixty-one".