25442617 has 8 divisors (see below), whose sum is σ = 25958016. Its totient is φ = 24931872.

The previous prime is 25442609. The next prime is 25442621. The reversal of 25442617 is 71624452.

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 25442617 - 2³ = 25442609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25442687) 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, 11148 + ... + 13234.

It is an arithmetic number, because the mean of its divisors is an integer number (3244752).

Almost surely, 2^25442617 is an apocalyptic number.

It is an amenable number.

25442617 is a deficient number, since it is larger than the sum of its proper divisors (515399).

25442617 is a wasteful number, since it uses less digits than its factorization.

25442617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327.

The product of its digits is 13440, while the sum is 31.

The square root of 25442617 is about 5044.0675054959. The cubic root of 25442617 is about 294.1173155455.

The spelling of 25442617 in words is "twenty-five million, four hundred forty-two thousand, six hundred seventeen".