85575805 has 24 divisors (see below), whose sum is σ = 122249952. Its totient is φ = 57308832.

The previous prime is 85575793. The next prime is 85575811. The reversal of 85575805 is 50857558.

It is not a de Polignac number, because 85575805 - 2¹⁹ = 85051517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6474 + ... + 14596.

It is an arithmetic number, because the mean of its divisors is an integer number (5093748).

Almost surely, 2^85575805 is an apocalyptic number.

It is an amenable number.

85575805 is a deficient number, since it is larger than the sum of its proper divisors (36674147).

85575805 is a wasteful number, since it uses less digits than its factorization.

85575805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8185 (or 8178 counting only the distinct ones).

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

The square root of 85575805 is about 9250.7191612328. The cubic root of 85575805 is about 440.6735637501.

The spelling of 85575805 in words is "eighty-five million, five hundred seventy-five thousand, eight hundred five".