5256271713421 has 2 divisors, whose sum is σ = 5256271713422. Its totient is φ = 5256271713420.

The previous prime is 5256271713289. The next prime is 5256271713533. The reversal of 5256271713421 is 1243171726525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3102568710921 + 2153703002500 = 1761411^2 + 1467550^2 .

It is a cyclic number.

It is not a de Polignac number, because 5256271713421 - 2¹¹ = 5256271711373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5256271723421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2628135856710 + 2628135856711.

It is an arithmetic number, because the mean of its divisors is an integer number (2628135856711).

Almost surely, 2^{5256271713421} is an apocalyptic number.

It is an amenable number.

5256271713421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5256271713421 is an equidigital number, since it uses as much as digits as its factorization.

5256271713421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 46.

The spelling of 5256271713421 in words is "five trillion, two hundred fifty-six billion, two hundred seventy-one million, seven hundred thirteen thousand, four hundred twenty-one".