25287283 has 18 divisors (see below), whose sum is σ = 30248988. Its totient is φ = 21077280.

The previous prime is 25287247. The next prime is 25287287. The reversal of 25287283 is 38278252.

It is not a de Polignac number, because 25287283 - 2⁹ = 25286771 is a prime.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (25287287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 82216 + ... + 82522.

Almost surely, 2^25287283 is an apocalyptic number.

25287283 is a deficient number, since it is larger than the sum of its proper divisors (4961705).

25287283 is an equidigital number, since it uses as much as digits as its factorization.

25287283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 355 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 25287283 is about 5028.6462392974. The cubic root of 25287283 is about 293.5175382547.

The spelling of 25287283 in words is "twenty-five million, two hundred eighty-seven thousand, two hundred eighty-three".