865025 has 12 divisors (see below), whose sum is σ = 1226112. Its totient is φ = 593040.

The previous prime is 865003. The next prime is 865043. The reversal of 865025 is 520568.

It is not a de Polignac number, because 865025 - 2¹² = 860929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 864985 and 865003.

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 865025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2297 + ... + 2646.

It is an arithmetic number, because the mean of its divisors is an integer number (102176).

2⁸⁶⁵⁰²⁵ is an apocalyptic number.

It is an amenable number.

865025 is a deficient number, since it is larger than the sum of its proper divisors (361087).

865025 is a wasteful number, since it uses less digits than its factorization.

865025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960 (or 4955 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 865025 is about 930.0672018731. The cubic root of 865025 is about 95.2817122633.

The spelling of 865025 in words is "eight hundred sixty-five thousand, twenty-five".