85512518 has 16 divisors (see below), whose sum is σ = 157869600. Its totient is φ = 33829056.

The previous prime is 85512491. The next prime is 85512563. The reversal of 85512518 is 81521558.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 234743 + ... + 235106.

It is an arithmetic number, because the mean of its divisors is an integer number (9866850).

Almost surely, 2^85512518 is an apocalyptic number.

85512518 is a deficient number, since it is larger than the sum of its proper divisors (72357082).

85512518 is a wasteful number, since it uses less digits than its factorization.

85512518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469871.

The product of its digits is 16000, while the sum is 35.

The square root of 85512518 is about 9247.2978755959. The cubic root of 85512518 is about 440.5649045886.

It can be divided in two parts, 8 and 5512518, that multiplied together give a palindrome (44100144).

The spelling of 85512518 in words is "eighty-five million, five hundred twelve thousand, five hundred eighteen".