85009015 has 32 divisors (see below), whose sum is σ = 127120896. Its totient is φ = 53136000.

The previous prime is 85009009. The next prime is 85009033. The reversal of 85009015 is 51090058.

It is not a de Polignac number, because 85009015 - 2³ = 85009007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36640 + ... + 38890.

It is an arithmetic number, because the mean of its divisors is an integer number (3972528).

Almost surely, 2^85009015 is an apocalyptic number.

85009015 is a deficient number, since it is larger than the sum of its proper divisors (42111881).

85009015 is a wasteful number, since it uses less digits than its factorization.

85009015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 85009015 is about 9220.0333513497. The cubic root of 85009015 is about 439.6985107524.

The spelling of 85009015 in words is "eighty-five million, nine thousand, fifteen".