85167505 has 16 divisors (see below), whose sum is σ = 106913664. Its totient is φ = 65007360.

The previous prime is 85167497. The next prime is 85167521. The reversal of 85167505 is 50576158.

It is not a de Polignac number, because 85167505 - 2³ = 85167497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65017 + ... + 66313.

It is an arithmetic number, because the mean of its divisors is an integer number (6682104).

Almost surely, 2^85167505 is an apocalyptic number.

It is an amenable number.

85167505 is a deficient number, since it is larger than the sum of its proper divisors (21746159).

85167505 is a wasteful number, since it uses less digits than its factorization.

85167505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 85167505 is about 9228.6242203267. The cubic root of 85167505 is about 439.9715976846.

The spelling of 85167505 in words is "eighty-five million, one hundred sixty-seven thousand, five hundred five".