25042105559 has 2 divisors, whose sum is σ = 25042105560. Its totient is φ = 25042105558.

The previous prime is 25042105537. The next prime is 25042105601. The reversal of 25042105559 is 95550124052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25042105559 - 2⁸ = 25042105303 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25042105859) 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, 12521052779 + 12521052780.

It is an arithmetic number, because the mean of its divisors is an integer number (12521052780).

Almost surely, 2^25042105559 is an apocalyptic number.

25042105559 is a deficient number, since it is larger than the sum of its proper divisors (1).

25042105559 is an equidigital number, since it uses as much as digits as its factorization.

25042105559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 25042105559 in words is "twenty-five billion, forty-two million, one hundred five thousand, five hundred fifty-nine".