85706225 has 12 divisors (see below), whose sum is σ = 115937520. Its totient is φ = 62331600.

The previous prime is 85706221. The next prime is 85706249. The reversal of 85706225 is 52260758.

It is not a de Polignac number, because 85706225 - 2² = 85706221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85706221) 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, 155555 + ... + 156104.

It is an arithmetic number, because the mean of its divisors is an integer number (9661460).

Almost surely, 2^85706225 is an apocalyptic number.

It is an amenable number.

85706225 is a deficient number, since it is larger than the sum of its proper divisors (30231295).

85706225 is a wasteful number, since it uses less digits than its factorization.

85706225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311680 (or 311675 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 85706225 is about 9257.7656591642. The cubic root of 85706225 is about 440.8973165357.

The spelling of 85706225 in words is "eighty-five million, seven hundred six thousand, two hundred twenty-five".