25075000805 has 8 divisors (see below), whose sum is σ = 30109212672. Its totient is φ = 20047192848.

The previous prime is 25075000801. The next prime is 25075000813. The reversal of 25075000805 is 50800057052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25075000805 - 2² = 25075000801 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25075000801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592357 + ... + 1608026.

It is an arithmetic number, because the mean of its divisors is an integer number (3763651584).

Almost surely, 2^25075000805 is an apocalyptic number.

It is an amenable number.

25075000805 is a deficient number, since it is larger than the sum of its proper divisors (5034211867).

25075000805 is a wasteful number, since it uses less digits than its factorization.

25075000805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201955.

The product of its (nonzero) digits is 14000, while the sum is 32.

Adding to 25075000805 its reverse (50800057052), we get a palindrome (75875057857).

The spelling of 25075000805 in words is "twenty-five billion, seventy-five million, eight hundred five", and thus it is an aban number.