25314289 has 40 divisors (see below), whose sum is σ = 36075200. Its totient is φ = 17249760.

The previous prime is 25314287. The next prime is 25314293. The reversal of 25314289 is 98241352.

25314289 = 1512² + 1513² + ... + 1522².

It is not a de Polignac number, because 25314289 - 2¹ = 25314287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25314281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1332322 + ... + 1332340.

It is an arithmetic number, because the mean of its divisors is an integer number (901880).

Almost surely, 2^25314289 is an apocalyptic number.

It is an amenable number.

25314289 is a deficient number, since it is larger than the sum of its proper divisors (10760911).

25314289 is an equidigital number, since it uses as much as digits as its factorization.

25314289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 50 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 25314289 is about 5031.3307384826. The cubic root of 25314289 is about 293.6219901575.

The spelling of 25314289 in words is "twenty-five million, three hundred fourteen thousand, two hundred eighty-nine".