5261242171 has 2 divisors, whose sum is σ = 5261242172. Its totient is φ = 5261242170.

The previous prime is 5261242039. The next prime is 5261242183. The reversal of 5261242171 is 1712421625.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5261242171 - 2¹⁵ = 5261209403 is a prime.

It is not a weakly prime, because it can be changed into another prime (5261242271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2630621085 + 2630621086.

It is an arithmetic number, because the mean of its divisors is an integer number (2630621086).

Almost surely, 2^5261242171 is an apocalyptic number.

5261242171 is a deficient number, since it is larger than the sum of its proper divisors (1).

5261242171 is an equidigital number, since it uses as much as digits as its factorization.

5261242171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 5261242171 is about 72534.4205946391. The cubic root of 5261242171 is about 1739.2530121443.

Adding to 5261242171 its reverse (1712421625), we get a palindrome (6973663796).

The spelling of 5261242171 in words is "five billion, two hundred sixty-one million, two hundred forty-two thousand, one hundred seventy-one".