25689241 has 4 divisors (see below), whose sum is σ = 25767184. Its totient is φ = 25611300.

The previous prime is 25689233. The next prime is 25689253. The reversal of 25689241 is 14298652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25689241 - 2³ = 25689233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25689241.

It is not an unprimeable number, because it can be changed into a prime (25689221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38475 + ... + 39136.

It is an arithmetic number, because the mean of its divisors is an integer number (6441796).

Almost surely, 2^25689241 is an apocalyptic number.

It is an amenable number.

25689241 is a deficient number, since it is larger than the sum of its proper divisors (77943).

25689241 is an equidigital number, since it uses as much as digits as its factorization.

25689241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77942.

The product of its digits is 34560, while the sum is 37.

The square root of 25689241 is about 5068.4554846620. The cubic root of 25689241 is about 295.0645879838.

The spelling of 25689241 in words is "twenty-five million, six hundred eighty-nine thousand, two hundred forty-one".