85508755 has 4 divisors (see below), whose sum is σ = 102610512. Its totient is φ = 68407000.

The previous prime is 85508749. The next prime is 85508767. The reversal of 85508755 is 55780558.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55780558 = 2 ⋅27890279.

It is not a de Polignac number, because 85508755 - 2³ = 85508747 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8550871 + ... + 8550880.

It is an arithmetic number, because the mean of its divisors is an integer number (25652628).

Almost surely, 2^85508755 is an apocalyptic number.

85508755 is a deficient number, since it is larger than the sum of its proper divisors (17101757).

85508755 is a wasteful number, since it uses less digits than its factorization.

85508755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17101756.

The product of its (nonzero) digits is 280000, while the sum is 43.

The square root of 85508755 is about 9247.0944085156. The cubic root of 85508755 is about 440.5584421037.

The spelling of 85508755 in words is "eighty-five million, five hundred eight thousand, seven hundred fifty-five".