85216536 has 40 divisors (see below), whose sum is σ = 238687020. Its totient is φ = 28405296.

The previous prime is 85216531. The next prime is 85216567. The reversal of 85216536 is 63561258.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 85216536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85216531) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 65106 + ... + 66401.

Almost surely, 2^85216536 is an apocalyptic number.

It is an amenable number.

85216536 is an abundant number, since it is smaller than the sum of its proper divisors (153470484).

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

85216536 is a wasteful number, since it uses less digits than its factorization.

85216536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131525 (or 131512 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 85216536 is about 9231.2803012367. The cubic root of 85216536 is about 440.0560121531.

The spelling of 85216536 in words is "eighty-five million, two hundred sixteen thousand, five hundred thirty-six".