5249278271 has 2 divisors, whose sum is σ = 5249278272. Its totient is φ = 5249278270.

The previous prime is 5249278259. The next prime is 5249278361. The reversal of 5249278271 is 1728729425.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5249278271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5249278211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2624639135 + 2624639136.

It is an arithmetic number, because the mean of its divisors is an integer number (2624639136).

Almost surely, 2^5249278271 is an apocalyptic number.

5249278271 is a deficient number, since it is larger than the sum of its proper divisors (1).

5249278271 is an equidigital number, since it uses as much as digits as its factorization.

5249278271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 47.

The square root of 5249278271 is about 72451.9031565079. The cubic root of 5249278271 is about 1737.9336759606.

The spelling of 5249278271 in words is "five billion, two hundred forty-nine million, two hundred seventy-eight thousand, two hundred seventy-one".