25185617059 has 2 divisors, whose sum is σ = 25185617060. Its totient is φ = 25185617058.

The previous prime is 25185617047. The next prime is 25185617087. The reversal of 25185617059 is 95071658152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25185617059 - 2³¹ = 23038133411 is a prime.

It is not a weakly prime, because it can be changed into another prime (25185617099) 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, 12592808529 + 12592808530.

It is an arithmetic number, because the mean of its divisors is an integer number (12592808530).

Almost surely, 2^25185617059 is an apocalyptic number.

25185617059 is a deficient number, since it is larger than the sum of its proper divisors (1).

25185617059 is an equidigital number, since it uses as much as digits as its factorization.

25185617059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756000, while the sum is 49.

The spelling of 25185617059 in words is "twenty-five billion, one hundred eighty-five million, six hundred seventeen thousand, fifty-nine".