25038867473 has 2 divisors, whose sum is σ = 25038867474. Its totient is φ = 25038867472.

The previous prime is 25038867391. The next prime is 25038867517. The reversal of 25038867473 is 37476883052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25029454849 + 9412624 = 158207^2 + 3068^2 .

It is a cyclic number.

It is not a de Polignac number, because 25038867473 - 2²⁸ = 24770432017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25038867173) 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, 12519433736 + 12519433737.

It is an arithmetic number, because the mean of its divisors is an integer number (12519433737).

Almost surely, 2^25038867473 is an apocalyptic number.

It is an amenable number.

25038867473 is a deficient number, since it is larger than the sum of its proper divisors (1).

25038867473 is an equidigital number, since it uses as much as digits as its factorization.

25038867473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 25038867473 in words is "twenty-five billion, thirty-eight million, eight hundred sixty-seven thousand, four hundred seventy-three".