25252805 has 8 divisors (see below), whose sum is σ = 31898400. Its totient is φ = 19138896.

The previous prime is 25252757. The next prime is 25252811. The reversal of 25252805 is 50825252.

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 25252805 - 2⁶ = 25252741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132815 + ... + 133004.

It is an arithmetic number, because the mean of its divisors is an integer number (3987300).

Almost surely, 2^25252805 is an apocalyptic number.

It is an amenable number.

25252805 is a deficient number, since it is larger than the sum of its proper divisors (6645595).

25252805 is a wasteful number, since it uses less digits than its factorization.

25252805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265843.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 25252805 is about 5025.2169107413. The cubic root of 25252805 is about 293.3840785429.

The spelling of 25252805 in words is "twenty-five million, two hundred fifty-two thousand, eight hundred five".