85090825 has 12 divisors (see below), whose sum is σ = 106603420. Its totient is φ = 67368960.

The previous prime is 85090813. The next prime is 85090829. The reversal of 85090825 is 52809058.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 8649 + 85082176 = 93^2 + 9224^2 .

It is not a de Polignac number, because 85090825 - 2⁷ = 85090697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85090829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15120 + ... + 19969.

Almost surely, 2^85090825 is an apocalyptic number.

It is an amenable number.

85090825 is a deficient number, since it is larger than the sum of its proper divisors (21512595).

85090825 is a wasteful number, since it uses less digits than its factorization.

85090825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35196 (or 35191 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 85090825 is about 9224.4688193955. The cubic root of 85090825 is about 439.8395161974.

The spelling of 85090825 in words is "eighty-five million, ninety thousand, eight hundred twenty-five".