85512613 has 8 divisors (see below), whose sum is σ = 86887296. Its totient is φ = 84142800.

The previous prime is 85512611. The next prime is 85512617. The reversal of 85512613 is 31621558.

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 85512613 - 2¹ = 85512611 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 (85512611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51943 + ... + 53563.

It is an arithmetic number, because the mean of its divisors is an integer number (10860912).

Almost surely, 2^85512613 is an apocalyptic number.

It is an amenable number.

85512613 is a deficient number, since it is larger than the sum of its proper divisors (1374683).

85512613 is a wasteful number, since it uses less digits than its factorization.

85512613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435.

The product of its digits is 7200, while the sum is 31.

The square root of 85512613 is about 9247.3030122301. The cubic root of 85512613 is about 440.5650677368.

The spelling of 85512613 in words is "eighty-five million, five hundred twelve thousand, six hundred thirteen".