85636825 has 6 divisors (see below), whose sum is σ = 106189694. Its totient is φ = 68509440.

The previous prime is 85636799. The next prime is 85636841. The reversal of 85636825 is 52863658.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 15429184 + 70207641 = 3928^2 + 8379^2 .

It is not a de Polignac number, because 85636825 - 2¹³ = 85628633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1712712 + ... + 1712761.

Almost surely, 2^85636825 is an apocalyptic number.

It is an amenable number.

85636825 is a deficient number, since it is larger than the sum of its proper divisors (20552869).

85636825 is a wasteful number, since it uses less digits than its factorization.

85636825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425483 (or 3425478 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 85636825 is about 9254.0166954680. The cubic root of 85636825 is about 440.7782799219.

The spelling of 85636825 in words is "eighty-five million, six hundred thirty-six thousand, eight hundred twenty-five".