289255925 has 12 divisors (see below), whose sum is σ = 409917216. Its totient is φ = 198346800.

The previous prime is 289255921. The next prime is 289255933. The reversal of 289255925 is 529552982.

It is a happy number.

It is not a de Polignac number, because 289255925 - 2² = 289255921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 289255925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289255921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 826271 + ... + 826620.

It is an arithmetic number, because the mean of its divisors is an integer number (34159768).

Almost surely, 2^289255925 is an apocalyptic number.

289255925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

289255925 is a deficient number, since it is larger than the sum of its proper divisors (120661291).

289255925 is a wasteful number, since it uses less digits than its factorization.

289255925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652908 (or 1652903 counting only the distinct ones).

The product of its digits is 648000, while the sum is 47.

The square root of 289255925 is about 17007.5255401837. The cubic root of 289255925 is about 661.3440052030.

The spelling of 289255925 in words is "two hundred eighty-nine million, two hundred fifty-five thousand, nine hundred twenty-five".