25794542801 has 4 divisors (see below), whose sum is σ = 25807109172. Its totient is φ = 25781976432.

The previous prime is 25794542791. The next prime is 25794542821. The reversal of 25794542801 is 10824549752.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12809712400 + 12984830401 = 113180^2 + 113951^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25794542801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25794542821) 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 in 3 ways as a sum of consecutive naturals, for example, 6280106 + ... + 6284211.

It is an arithmetic number, because the mean of its divisors is an integer number (6451777293).

Almost surely, 2^25794542801 is an apocalyptic number.

It is an amenable number.

25794542801 is a deficient number, since it is larger than the sum of its proper divisors (12566371).

25794542801 is a wasteful number, since it uses less digits than its factorization.

25794542801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12566370.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 25794542801 in words is "twenty-five billion, seven hundred ninety-four million, five hundred forty-two thousand, eight hundred one".