25851303871 has 2 divisors, whose sum is σ = 25851303872. Its totient is φ = 25851303870.

The previous prime is 25851303857. The next prime is 25851303937. The reversal of 25851303871 is 17830315852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25851303871 - 2¹⁷ = 25851172799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25851303571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12925651935 + 12925651936.

It is an arithmetic number, because the mean of its divisors is an integer number (12925651936).

Almost surely, 2^25851303871 is an apocalyptic number.

25851303871 is a deficient number, since it is larger than the sum of its proper divisors (1).

25851303871 is an equidigital number, since it uses as much as digits as its factorization.

25851303871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 25851303871 in words is "twenty-five billion, eight hundred fifty-one million, three hundred three thousand, eight hundred seventy-one".