289495025 has 6 divisors (see below), whose sum is σ = 358973862. Its totient is φ = 231596000.

The previous prime is 289495013. The next prime is 289495093. The reversal of 289495025 is 520594982.

It can be written as a sum of positive squares in 3 ways, for example, as 50112241 + 239382784 = 7079^2 + 15472^2 .

It is not a de Polignac number, because 289495025 - 2²⁰ = 288446449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5789876 + ... + 5789925.

It is an arithmetic number, because the mean of its divisors is an integer number (59828977).

Almost surely, 2^289495025 is an apocalyptic number.

289495025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

289495025 is a deficient number, since it is larger than the sum of its proper divisors (69478837).

289495025 is a wasteful number, since it uses less digits than its factorization.

289495025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11579811 (or 11579806 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 289495025 is about 17014.5533294295. The cubic root of 289495025 is about 661.5261781376.

The spelling of 289495025 in words is "two hundred eighty-nine million, four hundred ninety-five thousand, twenty-five".