85216275 has 18 divisors (see below), whose sum is σ = 152632220. Its totient is φ = 45448560.

The previous prime is 85216267. The next prime is 85216277. The reversal of 85216275 is 57261258.

It is a happy number.

85216275 is a `hidden beast` number, since 8 + 5 + 21 + 627 + 5 = 666.

It is not a de Polignac number, because 85216275 - 2³ = 85216267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85216277) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 189145 + ... + 189594.

Almost surely, 2^85216275 is an apocalyptic number.

85216275 is a deficient number, since it is larger than the sum of its proper divisors (67415945).

85216275 is a wasteful number, since it uses less digits than its factorization.

85216275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378755 (or 378747 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 85216275 is about 9231.2661645085. The cubic root of 85216275 is about 440.0555628868.

It can be divided in two parts, 85216 and 275, that added together give a triangular number (85491 = T₄₁₃).

The spelling of 85216275 in words is "eighty-five million, two hundred sixteen thousand, two hundred seventy-five".