25717417241 has 2 divisors, whose sum is σ = 25717417242. Its totient is φ = 25717417240.

The previous prime is 25717417237. The next prime is 25717417259. The reversal of 25717417241 is 14271471752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25445035225 + 272382016 = 159515^2 + 16504^2 .

It is a cyclic number.

It is not a de Polignac number, because 25717417241 - 2² = 25717417237 is a prime.

It is a super-2 number, since 2×25717417241² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25717417291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12858708620 + 12858708621.

It is an arithmetic number, because the mean of its divisors is an integer number (12858708621).

Almost surely, 2^25717417241 is an apocalyptic number.

It is an amenable number.

25717417241 is a deficient number, since it is larger than the sum of its proper divisors (1).

25717417241 is an equidigital number, since it uses as much as digits as its factorization.

25717417241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109760, while the sum is 41.

Adding to 25717417241 its reverse (14271471752), we get a palindrome (39988888993).

The spelling of 25717417241 in words is "twenty-five billion, seven hundred seventeen million, four hundred seventeen thousand, two hundred forty-one".