289359825 has 24 divisors (see below), whose sum is σ = 494908800. Its totient is φ = 149002560.

The previous prime is 289359821. The next prime is 289359841. The reversal of 289359825 is 528953982.

It is not a de Polignac number, because 289359825 - 2² = 289359821 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289359821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64345 + ... + 68694.

It is an arithmetic number, because the mean of its divisors is an integer number (20621200).

Almost surely, 2^289359825 is an apocalyptic number.

289359825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

289359825 is a deficient number, since it is larger than the sum of its proper divisors (205548975).

289359825 is a wasteful number, since it uses less digits than its factorization.

289359825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133081 (or 133076 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 51.

The square root of 289359825 is about 17010.5797961151. The cubic root of 289359825 is about 661.4231800912.

The spelling of 289359825 in words is "two hundred eighty-nine million, three hundred fifty-nine thousand, eight hundred twenty-five".