5205444169 has 2 divisors, whose sum is σ = 5205444170. Its totient is φ = 5205444168.

The previous prime is 5205444161. The next prime is 5205444227. The reversal of 5205444169 is 9614445025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3181524025 + 2023920144 = 56405^2 + 44988^2 .

It is a cyclic number.

It is not a de Polignac number, because 5205444169 - 2³ = 5205444161 is a prime.

It is a super-2 number, since 2×5205444169² = 54193297993152201122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5205444161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2602722084 + 2602722085.

It is an arithmetic number, because the mean of its divisors is an integer number (2602722085).

Almost surely, 2^5205444169 is an apocalyptic number.

It is an amenable number.

5205444169 is a deficient number, since it is larger than the sum of its proper divisors (1).

5205444169 is an equidigital number, since it uses as much as digits as its factorization.

5205444169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 5205444169 is about 72148.7641543499. The cubic root of 5205444169 is about 1733.0826090463.

The spelling of 5205444169 in words is "five billion, two hundred five million, four hundred forty-four thousand, one hundred sixty-nine".