289035025 has 12 divisors (see below), whose sum is σ = 370763100. Its totient is φ = 223254080.

The previous prime is 289035013. The next prime is 289035029. The reversal of 289035025 is 520530982.

It can be written as a sum of positive squares in 6 ways, for example, as 1024 + 289034001 = 32^2 + 17001^2 .

It is not a de Polignac number, because 289035025 - 2⁹ = 289034513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289035029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198610 + ... + 200059.

It is an arithmetic number, because the mean of its divisors is an integer number (30896925).

Almost surely, 2^289035025 is an apocalyptic number.

289035025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

289035025 is a deficient number, since it is larger than the sum of its proper divisors (81728075).

289035025 is a wasteful number, since it uses less digits than its factorization.

289035025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398708 (or 398703 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 289035025 is about 17001.0301158489. The cubic root of 289035025 is about 661.1756098099.

The spelling of 289035025 in words is "two hundred eighty-nine million, thirty-five thousand, twenty-five".