5205056191 has 2 divisors, whose sum is σ = 5205056192. Its totient is φ = 5205056190.

The previous prime is 5205056177. The next prime is 5205056237. The reversal of 5205056191 is 1916505025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5205056191 - 2¹⁵ = 5205023423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5205054191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2602528095 + 2602528096.

It is an arithmetic number, because the mean of its divisors is an integer number (2602528096).

Almost surely, 2^5205056191 is an apocalyptic number.

5205056191 is a deficient number, since it is larger than the sum of its proper divisors (1).

5205056191 is an equidigital number, since it uses as much as digits as its factorization.

5205056191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 34.

The square root of 5205056191 is about 72146.0753679644. The cubic root of 5205056191 is about 1733.0395506246.

It can be divided in two parts, 52050 and 56191, that added together give a square (108241 = 329²).

The spelling of 5205056191 in words is "five billion, two hundred five million, fifty-six thousand, one hundred ninety-one".