85012544 has 28 divisors (see below), whose sum is σ = 168991788. Its totient is φ = 42432000.

The previous prime is 85012513. The next prime is 85012553. The reversal of 85012544 is 44521058.

It can be written as a sum of positive squares in 2 ways, for example, as 16321600 + 68690944 = 4040^2 + 8288^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64694 + ... + 65994.

It is an arithmetic number, because the mean of its divisors is an integer number (6035421).

Almost surely, 2^85012544 is an apocalyptic number.

It is an amenable number.

85012544 is a deficient number, since it is larger than the sum of its proper divisors (83979244).

85012544 is a wasteful number, since it uses less digits than its factorization.

85012544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334 (or 2324 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 85012544 is about 9220.2247261116. The cubic root of 85012544 is about 439.7045951054.

The spelling of 85012544 in words is "eighty-five million, twelve thousand, five hundred forty-four".