25796805 has 32 divisors (see below), whose sum is σ = 44098560. Its totient is φ = 12848640.

The previous prime is 25796801. The next prime is 25796819. The reversal of 25796805 is 50869752.

It is not a de Polignac number, because 25796805 - 2² = 25796801 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25796801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12529 + ... + 14441.

It is an arithmetic number, because the mean of its divisors is an integer number (1378080).

Almost surely, 2^25796805 is an apocalyptic number.

It is an amenable number.

25796805 is a deficient number, since it is larger than the sum of its proper divisors (18301755).

25796805 is a wasteful number, since it uses less digits than its factorization.

25796805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 25796805 is about 5079.0555224372. The cubic root of 25796805 is about 295.4758383937.

The spelling of 25796805 in words is "twenty-five million, seven hundred ninety-six thousand, eight hundred five".