25768871 has 2 divisors, whose sum is σ = 25768872. Its totient is φ = 25768870.

The previous prime is 25768829. The next prime is 25768903. The reversal of 25768871 is 17886752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25768871 - 2¹⁴ = 25752487 is a prime.

It is a super-2 number, since 2×25768871² = 1328069425229282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25768801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12884435 + 12884436.

It is an arithmetic number, because the mean of its divisors is an integer number (12884436).

Almost surely, 2^25768871 is an apocalyptic number.

25768871 is a deficient number, since it is larger than the sum of its proper divisors (1).

25768871 is an equidigital number, since it uses as much as digits as its factorization.

25768871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 44.

The square root of 25768871 is about 5076.3048568816. The cubic root of 25768871 is about 295.3691481392.

The spelling of 25768871 in words is "twenty-five million, seven hundred sixty-eight thousand, eight hundred seventy-one".