25379085073 has 2 divisors, whose sum is σ = 25379085074. Its totient is φ = 25379085072.

The previous prime is 25379085041. The next prime is 25379085079. The reversal of 25379085073 is 37058097352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24993080464 + 386004609 = 158092^2 + 19647^2 .

It is a cyclic number.

It is not a de Polignac number, because 25379085073 - 2⁵ = 25379085041 is a prime.

It is not a weakly prime, because it can be changed into another prime (25379085079) 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, 12689542536 + 12689542537.

It is an arithmetic number, because the mean of its divisors is an integer number (12689542537).

Almost surely, 2^25379085073 is an apocalyptic number.

It is an amenable number.

25379085073 is a deficient number, since it is larger than the sum of its proper divisors (1).

25379085073 is an equidigital number, since it uses as much as digits as its factorization.

25379085073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 25379085073 in words is "twenty-five billion, three hundred seventy-nine million, eighty-five thousand, seventy-three".