5106100561 has 2 divisors, whose sum is σ = 5106100562. Its totient is φ = 5106100560.

The previous prime is 5106100541. The next prime is 5106100591. The reversal of 5106100561 is 1650016015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5105959936 + 140625 = 71456^2 + 375^2 .

It is a cyclic number.

It is not a de Polignac number, because 5106100561 - 2⁹ = 5106100049 is a prime.

It is not a weakly prime, because it can be changed into another prime (5106100511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553050280 + 2553050281.

It is an arithmetic number, because the mean of its divisors is an integer number (2553050281).

Almost surely, 2^5106100561 is an apocalyptic number.

It is an amenable number.

5106100561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5106100561 is an equidigital number, since it uses as much as digits as its factorization.

5106100561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 5106100561 is about 71456.9839903700. The cubic root of 5106100561 is about 1721.9866805432.

Adding to 5106100561 its reverse (1650016015), we get a palindrome (6756116576).

The spelling of 5106100561 in words is "five billion, one hundred six million, one hundred thousand, five hundred sixty-one".