85305256 has 32 divisors (see below), whose sum is σ = 164606400. Its totient is φ = 41420160.

The previous prime is 85305251. The next prime is 85305257. The reversal of 85305256 is 65250358.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (85305251) 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 7 ways as a sum of consecutive naturals, for example, 92365 + ... + 93283.

It is an arithmetic number, because the mean of its divisors is an integer number (5143950).

Almost surely, 2^85305256 is an apocalyptic number.

It is an amenable number.

85305256 is a deficient number, since it is larger than the sum of its proper divisors (79301144).

85305256 is a wasteful number, since it uses less digits than its factorization.

85305256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1245 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 85305256 is about 9236.0844517577. The cubic root of 85305256 is about 440.2086751224.

The spelling of 85305256 in words is "eighty-five million, three hundred five thousand, two hundred fifty-six".