85512517 has 8 divisors (see below), whose sum is σ = 86284800. Its totient is φ = 84743664.

The previous prime is 85512491. The next prime is 85512563. The reversal of 85512517 is 71521558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85512517 - 2¹⁹ = 84988229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85512577) 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 7 ways as a sum of consecutive naturals, for example, 79459 + ... + 80527.

It is an arithmetic number, because the mean of its divisors is an integer number (10785600).

Almost surely, 2^85512517 is an apocalyptic number.

It is an amenable number.

85512517 is a deficient number, since it is larger than the sum of its proper divisors (772283).

85512517 is a wasteful number, since it uses less digits than its factorization.

85512517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715.

The product of its digits is 14000, while the sum is 34.

The square root of 85512517 is about 9247.2978215260. The cubic root of 85512517 is about 440.5649028712.

It can be divided in two parts, 8 and 5512517, that multiplied together give a triangular number (44100136 = T₉₃₉₁).

The spelling of 85512517 in words is "eighty-five million, five hundred twelve thousand, five hundred seventeen".