85155705 has 48 divisors (see below), whose sum is σ = 154714560. Its totient is φ = 44929728.

The previous prime is 85155689. The next prime is 85155713. The reversal of 85155705 is 50755158.

85155705 is a `hidden beast` number, since 85 + 1 + 5 + 570 + 5 = 666.

It is not a de Polignac number, because 85155705 - 2⁴ = 85155689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85155705.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132114 + ... + 132756.

It is an arithmetic number, because the mean of its divisors is an integer number (3223220).

Almost surely, 2^85155705 is an apocalyptic number.

It is an amenable number.

85155705 is a deficient number, since it is larger than the sum of its proper divisors (69558855).

85155705 is a wasteful number, since it uses less digits than its factorization.

85155705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 36.

The square root of 85155705 is about 9227.9848829525. The cubic root of 85155705 is about 439.9512773185.

The spelling of 85155705 in words is "eighty-five million, one hundred fifty-five thousand, seven hundred five".