25828025287 has 2 divisors, whose sum is σ = 25828025288. Its totient is φ = 25828025286.

The previous prime is 25828025257. The next prime is 25828025339. The reversal of 25828025287 is 78252082852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25828025287 - 2⁷ = 25828025159 is a prime.

It is a super-2 number, since 2×25828025287² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25828025287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25828025257) 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, 12914012643 + 12914012644.

It is an arithmetic number, because the mean of its divisors is an integer number (12914012644).

Almost surely, 2^25828025287 is an apocalyptic number.

25828025287 is a deficient number, since it is larger than the sum of its proper divisors (1).

25828025287 is an equidigital number, since it uses as much as digits as its factorization.

25828025287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1433600, while the sum is 49.

The spelling of 25828025287 in words is "twenty-five billion, eight hundred twenty-eight million, twenty-five thousand, two hundred eighty-seven".