289425 has 24 divisors (see below), whose sum is σ = 508896. Its totient is φ = 144640.

The previous prime is 289423. The next prime is 289439. The reversal of 289425 is 524982.

289425 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 289425 - 2¹ = 289423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 289392 and 289401.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 289425.

It is not an unprimeable number, because it can be changed into a prime (289423) 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, 1162 + ... + 1388.

It is an arithmetic number, because the mean of its divisors is an integer number (21204).

2²⁸⁹⁴²⁵ is an apocalyptic number.

289425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

289425 is a deficient number, since it is larger than the sum of its proper divisors (219471).

289425 is a wasteful number, since it uses less digits than its factorization.

289425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 252 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 289425 is about 537.9823417176. The cubic root of 289425 is about 66.1472835705.

It can be divided in two parts, 28 and 9425, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 289425 in words is "two hundred eighty-nine thousand, four hundred twenty-five".