5051511161 has 2 divisors, whose sum is σ = 5051511162. Its totient is φ = 5051511160.

The previous prime is 5051511097. The next prime is 5051511181. The reversal of 5051511161 is 1611151505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3243985936 + 1807525225 = 56956^2 + 42515^2 .

It is a cyclic number.

It is not a de Polignac number, because 5051511161 - 2⁶ = 5051511097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5051511161.

It is not a weakly prime, because it can be changed into another prime (5051511181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525755580 + 2525755581.

It is an arithmetic number, because the mean of its divisors is an integer number (2525755581).

Almost surely, 2^5051511161 is an apocalyptic number.

It is an amenable number.

5051511161 is a deficient number, since it is larger than the sum of its proper divisors (1).

5051511161 is an equidigital number, since it uses as much as digits as its factorization.

5051511161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 26.

The square root of 5051511161 is about 71073.9837141552. The cubic root of 5051511161 is about 1715.8280855056.

Adding to 5051511161 its reverse (1611151505), we get a palindrome (6662662666).

The spelling of 5051511161 in words is "five billion, fifty-one million, five hundred eleven thousand, one hundred sixty-one".