25017 has 8 divisors (see below), whose sum is σ = 34560. Its totient is φ = 16080.

The previous prime is 25013. The next prime is 25031. The reversal of 25017 is 71052.

It is a happy number.

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

It is not a de Polignac number, because 25017 - 2² = 25013 is a prime.

It is an Ulam number.

25017 is a lucky number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 24987 and 25005.

It is not an unprimeable number, because it can be changed into a prime (25013) 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, 42 + ... + 227.

It is an arithmetic number, because the mean of its divisors is an integer number (4320).

2²⁵⁰¹⁷ is an apocalyptic number.

It is an amenable number.

25017 is a deficient number, since it is larger than the sum of its proper divisors (9543).

25017 is a wasteful number, since it uses less digits than its factorization.

25017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303.

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 25017 is about 158.1676325928. The cubic root of 25017 is about 29.2468036539.

Adding to 25017 its reverse (71052), we get a palindrome (96069).

The spelling of 25017 in words is "twenty-five thousand, seventeen".