5191875109 has 2 divisors, whose sum is σ = 5191875110. Its totient is φ = 5191875108.

The previous prime is 5191875053. The next prime is 5191875149. The reversal of 5191875109 is 9015781915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4502812609 + 689062500 = 67103^2 + 26250^2 .

It is a cyclic number.

It is not a de Polignac number, because 5191875109 - 2⁷ = 5191874981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5191875149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2595937554 + 2595937555.

It is an arithmetic number, because the mean of its divisors is an integer number (2595937555).

Almost surely, 2^5191875109 is an apocalyptic number.

It is an amenable number.

5191875109 is a deficient number, since it is larger than the sum of its proper divisors (1).

5191875109 is an equidigital number, since it uses as much as digits as its factorization.

5191875109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 46.

The square root of 5191875109 is about 72054.6675032229. The cubic root of 5191875109 is about 1731.5754200250.

The spelling of 5191875109 in words is "five billion, one hundred ninety-one million, eight hundred seventy-five thousand, one hundred nine".