85521160 has 16 divisors (see below), whose sum is σ = 192422700. Its totient is φ = 34208448.

The previous prime is 85521143. The next prime is 85521167. The reversal of 85521160 is 6112558.

It can be written as a sum of positive squares in 2 ways, for example, as 76983076 + 8538084 = 8774^2 + 2922^2 .

It is not an unprimeable number, because it can be changed into a prime (85521167) 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 3 ways as a sum of consecutive naturals, for example, 1068975 + ... + 1069054.

Almost surely, 2^85521160 is an apocalyptic number.

It is an amenable number.

85521160 is an abundant number, since it is smaller than the sum of its proper divisors (106901540).

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

85521160 is a wasteful number, since it uses less digits than its factorization.

85521160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138040 (or 2138036 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 85521160 is about 9247.7651354260. The cubic root of 85521160 is about 440.5797454319.

The spelling of 85521160 in words is "eighty-five million, five hundred twenty-one thousand, one hundred sixty".