85606515 has 12 divisors (see below), whose sum is σ = 148384704. Its totient is φ = 45656784.

The previous prime is 85606487. The next prime is 85606517. The reversal of 85606515 is 51560658.

85606515 is a `hidden beast` number, since 85 + 60 + 6 + 515 = 666.

It is not a de Polignac number, because 85606515 - 2¹⁰ = 85605491 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 85606515.

It is not an unprimeable number, because it can be changed into a prime (85606517) 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 11 ways as a sum of consecutive naturals, for example, 951139 + ... + 951228.

It is an arithmetic number, because the mean of its divisors is an integer number (12365392).

Almost surely, 2^85606515 is an apocalyptic number.

85606515 is a deficient number, since it is larger than the sum of its proper divisors (62778189).

85606515 is a wasteful number, since it uses less digits than its factorization.

85606515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902378 (or 1902375 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 85606515 is about 9252.3788832927. The cubic root of 85606515 is about 440.7262712751.

The spelling of 85606515 in words is "eighty-five million, six hundred six thousand, five hundred fifteen".