85211256 has 32 divisors (see below), whose sum is σ = 229415760. Its totient is φ = 26218752.

The previous prime is 85211239. The next prime is 85211311. The reversal of 85211256 is 65211258.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136245 + ... + 136868.

Almost surely, 2^85211256 is an apocalyptic number.

It is an amenable number.

85211256 is an abundant number, since it is smaller than the sum of its proper divisors (144204504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85211256 is a wasteful number, since it uses less digits than its factorization.

85211256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273135 (or 273131 counting only the distinct ones).

The product of its digits is 4800, while the sum is 30.

The square root of 85211256 is about 9230.9943126404. The cubic root of 85211256 is about 440.0469233704.

The spelling of 85211256 in words is "eighty-five million, two hundred eleven thousand, two hundred fifty-six".