25965605 has 8 divisors (see below), whose sum is σ = 31687200. Its totient is φ = 20420176.

The previous prime is 25965557. The next prime is 25965607. The reversal of 25965605 is 50656952.

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 25965605 - 2⁸ = 25965349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25965607) 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, 43715 + ... + 44304.

It is an arithmetic number, because the mean of its divisors is an integer number (3960900).

Almost surely, 2^25965605 is an apocalyptic number.

It is an amenable number.

25965605 is a deficient number, since it is larger than the sum of its proper divisors (5721595).

25965605 is an equidigital number, since it uses as much as digits as its factorization.

25965605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88083.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 25965605 is about 5095.6456901947. The cubic root of 25965605 is about 296.1189145111.

The spelling of 25965605 in words is "twenty-five million, nine hundred sixty-five thousand, six hundred five".