85204225 has 12 divisors (see below), whose sum is σ = 106035376. Its totient is φ = 67916880.

The previous prime is 85204219. The next prime is 85204243. The reversal of 85204225 is 52240258.

It is not a de Polignac number, because 85204225 - 2¹⁹ = 84679937 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85204193 and 85204202.

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, 1054 + ... + 13096.

Almost surely, 2^85204225 is an apocalyptic number.

It is an amenable number.

85204225 is a deficient number, since it is larger than the sum of its proper divisors (20831151).

85204225 is a wasteful number, since it uses less digits than its factorization.

85204225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12336 (or 12331 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 85204225 is about 9230.6134682371. The cubic root of 85204225 is about 440.0348199028.

The spelling of 85204225 in words is "eighty-five million, two hundred four thousand, two hundred twenty-five".