85502444 has 6 divisors (see below), whose sum is σ = 149629284. Its totient is φ = 42751220.

The previous prime is 85502441. The next prime is 85502453. The reversal of 85502444 is 44420558.

It is a self number, because there is not a number n which added to its sum of digits gives 85502444.

It is not an unprimeable number, because it can be changed into a prime (85502441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10687802 + ... + 10687809.

It is an arithmetic number, because the mean of its divisors is an integer number (24938214).

Almost surely, 2^85502444 is an apocalyptic number.

It is an amenable number.

85502444 is a deficient number, since it is larger than the sum of its proper divisors (64126840).

85502444 is a wasteful number, since it uses less digits than its factorization.

85502444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21375615 (or 21375613 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 85502444 is about 9246.7531598935. The cubic root of 85502444 is about 440.5476033199.

The spelling of 85502444 in words is "eighty-five million, five hundred two thousand, four hundred forty-four".