25683261 has 8 divisors (see below), whose sum is σ = 35079744. Its totient is φ = 16704480.

The previous prime is 25683247. The next prime is 25683263. The reversal of 25683261 is 16238652.

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

It is not a de Polignac number, because 25683261 - 2⁹ = 25682749 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25683263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104281 + ... + 104526.

It is an arithmetic number, because the mean of its divisors is an integer number (4384968).

Almost surely, 2^25683261 is an apocalyptic number.

It is an amenable number.

25683261 is a deficient number, since it is larger than the sum of its proper divisors (9396483).

25683261 is a wasteful number, since it uses less digits than its factorization.

25683261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208851.

The product of its digits is 17280, while the sum is 33.

The square root of 25683261 is about 5067.8655270242. The cubic root of 25683261 is about 295.0416909382.

The spelling of 25683261 in words is "twenty-five million, six hundred eighty-three thousand, two hundred sixty-one".