85999225 has 36 divisors (see below), whose sum is σ = 121369836. Its totient is φ = 60082560.

The previous prime is 85999223. The next prime is 85999261. The reversal of 85999225 is 52299958.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 29241 + 85969984 = 171^2 + 9272^2 .

It is not a de Polignac number, because 85999225 - 2¹ = 85999223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85999223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 116959 + ... + 117691.

Almost surely, 2^85999225 is an apocalyptic number.

It is an amenable number.

85999225 is a deficient number, since it is larger than the sum of its proper divisors (35370611).

85999225 is a wasteful number, since it uses less digits than its factorization.

85999225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 770 counting only the distinct ones).

The product of its digits is 583200, while the sum is 49.

The square root of 85999225 is about 9273.5767102019. The cubic root of 85999225 is about 441.3991703279.

The spelling of 85999225 in words is "eighty-five million, nine hundred ninety-nine thousand, two hundred twenty-five".