25263887141 has 2 divisors, whose sum is σ = 25263887142. Its totient is φ = 25263887140.

The previous prime is 25263887123. The next prime is 25263887177. The reversal of 25263887141 is 14178836252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14177903041 + 11085984100 = 119071^2 + 105290^2 .

It is a cyclic number.

It is not a de Polignac number, because 25263887141 - 2¹⁴ = 25263870757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25263887101) 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, 12631943570 + 12631943571.

It is an arithmetic number, because the mean of its divisors is an integer number (12631943571).

Almost surely, 2^25263887141 is an apocalyptic number.

It is an amenable number.

25263887141 is a deficient number, since it is larger than the sum of its proper divisors (1).

25263887141 is an equidigital number, since it uses as much as digits as its factorization.

25263887141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 47.

The spelling of 25263887141 in words is "twenty-five billion, two hundred sixty-three million, eight hundred eighty-seven thousand, one hundred forty-one".