25003 has 4 divisors (see below), whose sum is σ = 27288. Its totient is φ = 22720.

The previous prime is 24989. The next prime is 25013. The reversal of 25003 is 30052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25003 - 2⁵ = 24971 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

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 3 ways as a sum of consecutive naturals, for example, 1126 + ... + 1147.

It is an arithmetic number, because the mean of its divisors is an integer number (6822).

2²⁵⁰⁰³ is an apocalyptic number.

25003 is a deficient number, since it is larger than the sum of its proper divisors (2285).

25003 is a wasteful number, since it uses less digits than its factorization.

25003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284.

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 25003 is about 158.1233695568. The cubic root of 25003 is about 29.2413469424.

Adding to 25003 its reverse (30052), we get a palindrome (55055).

It can be divided in two parts, 2 and 5003, that added together give a palindrome (5005).

The spelling of 25003 in words is "twenty-five thousand, three".