85318516 has 6 divisors (see below), whose sum is σ = 149307410. Its totient is φ = 42659256.

The previous prime is 85318511. The next prime is 85318517. The reversal of 85318516 is 61581358.

It can be written as a sum of positive squares in only one way, i.e., 80460900 + 4857616 = 8970^2 + 2204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85318511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10664811 + ... + 10664818.

Almost surely, 2^85318516 is an apocalyptic number.

It is an amenable number.

85318516 is a deficient number, since it is larger than the sum of its proper divisors (63988894).

85318516 is a wasteful number, since it uses less digits than its factorization.

85318516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21329633 (or 21329631 counting only the distinct ones).

The product of its digits is 28800, while the sum is 37.

The square root of 85318516 is about 9236.8022605228. The cubic root of 85318516 is about 440.2314828793.

The spelling of 85318516 in words is "eighty-five million, three hundred eighteen thousand, five hundred sixteen".