25804627201 has 4 divisors (see below), whose sum is σ = 25805127600. Its totient is φ = 25804126804.

The previous prime is 25804627171. The next prime is 25804627249. The reversal of 25804627201 is 10272640852.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25804627201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25804627001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162631 + ... + 279388.

It is an arithmetic number, because the mean of its divisors is an integer number (6451281900).

Almost surely, 2^25804627201 is an apocalyptic number.

It is an amenable number.

25804627201 is a deficient number, since it is larger than the sum of its proper divisors (500399).

25804627201 is an equidigital number, since it uses as much as digits as its factorization.

25804627201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500398.

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 25804627201 in words is "twenty-five billion, eight hundred four million, six hundred twenty-seven thousand, two hundred one".