25366005 has 24 divisors (see below), whose sum is σ = 50249472. Its totient is φ = 11595744.

The previous prime is 25365997. The next prime is 25366009. The reversal of 25366005 is 50066352.

25366005 is a `hidden beast` number, since 2 + 53 + 6 + 600 + 5 = 666.

It is not a de Polignac number, because 25366005 - 2³ = 25365997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25366005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25366009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39949 + ... + 40578.

It is an arithmetic number, because the mean of its divisors is an integer number (2093728).

Almost surely, 2^25366005 is an apocalyptic number.

It is an amenable number.

25366005 is a deficient number, since it is larger than the sum of its proper divisors (24883467).

25366005 is a wasteful number, since it uses less digits than its factorization.

25366005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80545 (or 80542 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 25366005 is about 5036.4675120564. The cubic root of 25366005 is about 293.8218064988.

The spelling of 25366005 in words is "twenty-five million, three hundred sixty-six thousand, five".