25759641601 has 2 divisors, whose sum is σ = 25759641602. Its totient is φ = 25759641600.

The previous prime is 25759641577. The next prime is 25759641623. The reversal of 25759641601 is 10614695752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18346431601 + 7413210000 = 135449^2 + 86100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25759641601 is a prime.

It is not a weakly prime, because it can be changed into another prime (25759641631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12879820800 + 12879820801.

It is an arithmetic number, because the mean of its divisors is an integer number (12879820801).

Almost surely, 2^25759641601 is an apocalyptic number.

It is an amenable number.

25759641601 is a deficient number, since it is larger than the sum of its proper divisors (1).

25759641601 is an equidigital number, since it uses as much as digits as its factorization.

25759641601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 25759641601 in words is "twenty-five billion, seven hundred fifty-nine million, six hundred forty-one thousand, six hundred one".