85808055 has 16 divisors (see below), whose sum is σ = 143262720. Its totient is φ = 43774368.

The previous prime is 85808053. The next prime is 85808081. The reversal of 85808055 is 55080858.

It is not a de Polignac number, because 85808055 - 2¹ = 85808053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85808053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124015 + ... + 124704.

It is an arithmetic number, because the mean of its divisors is an integer number (8953920).

Almost surely, 2^85808055 is an apocalyptic number.

85808055 is a deficient number, since it is larger than the sum of its proper divisors (57454665).

85808055 is a wasteful number, since it uses less digits than its factorization.

85808055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248750.

The product of its (nonzero) digits is 64000, while the sum is 39.

The square root of 85808055 is about 9263.2637336956. The cubic root of 85808055 is about 441.0718616344.

The spelling of 85808055 in words is "eighty-five million, eight hundred eight thousand, fifty-five".