85529912 has 32 divisors (see below), whose sum is σ = 173108880. Its totient is φ = 39383040.

The previous prime is 85529911. The next prime is 85529947. The reversal of 85529912 is 21992558.

It is a self number, because there is not a number n which added to its sum of digits gives 85529912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85529911) by changing a digit.

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, 66023 + ... + 67305.

Almost surely, 2^85529912 is an apocalyptic number.

It is an amenable number.

85529912 is an abundant number, since it is smaller than the sum of its proper divisors (87578968).

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

85529912 is a wasteful number, since it uses less digits than its factorization.

85529912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943 (or 1939 counting only the distinct ones).

The product of its digits is 64800, while the sum is 41.

The square root of 85529912 is about 9248.2383187286. The cubic root of 85529912 is about 440.5947741585.

The spelling of 85529912 in words is "eighty-five million, five hundred twenty-nine thousand, nine hundred twelve".