25997303 has 4 divisors (see below), whose sum is σ = 26249808. Its totient is φ = 25744800.

The previous prime is 25997297. The next prime is 25997329. The reversal of 25997303 is 30379952.

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 25997303 - 2⁸ = 25997047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25997333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126098 + ... + 126303.

It is an arithmetic number, because the mean of its divisors is an integer number (6562452).

Almost surely, 2^25997303 is an apocalyptic number.

25997303 is a deficient number, since it is larger than the sum of its proper divisors (252505).

25997303 is a wasteful number, since it uses less digits than its factorization.

25997303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252504.

The product of its (nonzero) digits is 51030, while the sum is 38.

The square root of 25997303 is about 5098.7550441260. The cubic root of 25997303 is about 296.2393630867.

The spelling of 25997303 in words is "twenty-five million, nine hundred ninety-seven thousand, three hundred three".