25116609 has 8 divisors (see below), whose sum is σ = 38272960. Its totient is φ = 14352336.

The previous prime is 25116607. The next prime is 25116617. The reversal of 25116609 is 90661152.

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

It is not a de Polignac number, because 25116609 - 2¹ = 25116607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25116607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597994 + ... + 598035.

It is an arithmetic number, because the mean of its divisors is an integer number (4784120).

Almost surely, 2^25116609 is an apocalyptic number.

It is an amenable number.

25116609 is a deficient number, since it is larger than the sum of its proper divisors (13156351).

25116609 is a wasteful number, since it uses less digits than its factorization.

25116609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196039.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 25116609 is about 5011.6473339612. The cubic root of 25116609 is about 292.8556911857.

The spelling of 25116609 in words is "twenty-five million, one hundred sixteen thousand, six hundred nine".