25280303 has 4 divisors (see below), whose sum is σ = 25293408. Its totient is φ = 25267200.

The previous prime is 25280273. The next prime is 25280327. The reversal of 25280303 is 30308252.

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 25280303 - 2²⁴ = 8503087 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 (25280803) 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, 3026 + ... + 7727.

It is an arithmetic number, because the mean of its divisors is an integer number (6323352).

Almost surely, 2^25280303 is an apocalyptic number.

25280303 is a deficient number, since it is larger than the sum of its proper divisors (13105).

25280303 is a wasteful number, since it uses less digits than its factorization.

25280303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13104.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 25280303 is about 5027.9521676325. The cubic root of 25280303 is about 293.4905294093.

Adding to 25280303 its reverse (30308252), we get a palindrome (55588555).

The spelling of 25280303 in words is "twenty-five million, two hundred eighty thousand, three hundred three".