25005 has 8 divisors (see below), whose sum is σ = 40032. Its totient is φ = 13328.

The previous prime is 24989. The next prime is 25013. The reversal of 25005 is 50052.

25005 = T₇₀ + T₇₁ + ... + T₇₈.

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 25005 - 2⁴ = 24989 is a prime.

It is a plaindrome in base 12.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819 + ... + 848.

It is an arithmetic number, because the mean of its divisors is an integer number (5004).

2²⁵⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

25005 is a deficient number, since it is larger than the sum of its proper divisors (15027).

25005 is a wasteful number, since it uses less digits than its factorization.

25005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675.

The product of its (nonzero) digits is 50, while the sum is 12.

The square root of 25005 is about 158.1296936062. The cubic root of 25005 is about 29.2421265973.

Adding to 25005 its reverse (50052), we get a palindrome (75057).

The spelling of 25005 in words is "twenty-five thousand, five".