25875617 has 8 divisors (see below), whose sum is σ = 26639976. Its totient is φ = 25114752.

The previous prime is 25875613. The next prime is 25875659. The reversal of 25875617 is 71657852.

It can be written as a sum of positive squares in 4 ways, for example, as 23658496 + 2217121 = 4864^2 + 1489^2 .

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 25875617 - 2² = 25875613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25875611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24533 + ... + 25565.

It is an arithmetic number, because the mean of its divisors is an integer number (3329997).

Almost surely, 2^25875617 is an apocalyptic number.

It is an amenable number.

25875617 is a deficient number, since it is larger than the sum of its proper divisors (764359).

25875617 is a wasteful number, since it uses less digits than its factorization.

25875617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747.

The product of its digits is 117600, while the sum is 41.

The square root of 25875617 is about 5086.8081347737. The cubic root of 25875617 is about 295.7764359179.

The spelling of 25875617 in words is "twenty-five million, eight hundred seventy-five thousand, six hundred seventeen".