25978303 has 4 divisors (see below), whose sum is σ = 27976648. Its totient is φ = 23979960.

The previous prime is 25978289. The next prime is 25978307. The reversal of 25978303 is 30387952.

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 25978303 - 2¹⁷ = 25847231 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 (25978307) 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, 999153 + ... + 999178.

It is an arithmetic number, because the mean of its divisors is an integer number (6994162).

Almost surely, 2^25978303 is an apocalyptic number.

25978303 is a deficient number, since it is larger than the sum of its proper divisors (1998345).

25978303 is a wasteful number, since it uses less digits than its factorization.

25978303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998344.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 25978303 is about 5096.8915036520. The cubic root of 25978303 is about 296.1671771417.

The spelling of 25978303 in words is "twenty-five million, nine hundred seventy-eight thousand, three hundred three".