850025 has 18 divisors (see below), whose sum is σ = 1162686. Its totient is φ = 616000.

The previous prime is 850021. The next prime is 850027. The reversal of 850025 is 520058.

It can be written as a sum of positive squares in 3 ways, for example, as 94864 + 755161 = 308^2 + 869^2 .

It is not a de Polignac number, because 850025 - 2² = 850021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 849979 and 850006.

It is not an unprimeable number, because it can be changed into a prime (850021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2885 + ... + 3165.

2⁸⁵⁰⁰²⁵ is an apocalyptic number.

It is an amenable number.

850025 is a deficient number, since it is larger than the sum of its proper divisors (312661).

850025 is a wasteful number, since it uses less digits than its factorization.

850025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 850025 is about 921.9680037832. The cubic root of 850025 is about 94.7277524038.

The spelling of 850025 in words is "eight hundred fifty thousand, twenty-five".