25429405087 has 2 divisors, whose sum is σ = 25429405088. Its totient is φ = 25429405086.

The previous prime is 25429405033. The next prime is 25429405159. The reversal of 25429405087 is 78050492452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25429405087 - 2¹¹ = 25429403039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25429405487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12714702543 + 12714702544.

It is an arithmetic number, because the mean of its divisors is an integer number (12714702544).

Almost surely, 2^25429405087 is an apocalyptic number.

25429405087 is a deficient number, since it is larger than the sum of its proper divisors (1).

25429405087 is an equidigital number, since it uses as much as digits as its factorization.

25429405087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 25429405087 in words is "twenty-five billion, four hundred twenty-nine million, four hundred five thousand, eighty-seven".