25801285 has 8 divisors (see below), whose sum is σ = 32307840. Its totient is φ = 19743504.

The previous prime is 25801277. The next prime is 25801289. The reversal of 25801285 is 58210852.

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 25801285 - 2³ = 25801277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25801289) by changing a digit.

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, 112065 + ... + 112294.

It is an arithmetic number, because the mean of its divisors is an integer number (4038480).

Almost surely, 2^25801285 is an apocalyptic number.

It is an amenable number.

25801285 is a deficient number, since it is larger than the sum of its proper divisors (6506555).

25801285 is a wasteful number, since it uses less digits than its factorization.

25801285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224387.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 25801285 is about 5079.4965301691. The cubic root of 25801285 is about 295.4929419993.

The spelling of 25801285 in words is "twenty-five million, eight hundred one thousand, two hundred eighty-five".