85500801 has 6 divisors (see below), whose sum is σ = 123501170. Its totient is φ = 57000528.

The previous prime is 85500791. The next prime is 85500841. The reversal of 85500801 is 10800558.

85500801 is a `hidden beast` number, since 85 + 500 + 80 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 85377600 + 123201 = 9240^2 + 351^2 .

It is not a de Polignac number, because 85500801 - 2²² = 81306497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85500841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4750036 + ... + 4750053.

Almost surely, 2^85500801 is an apocalyptic number.

It is an amenable number.

85500801 is a deficient number, since it is larger than the sum of its proper divisors (38000369).

85500801 is a wasteful number, since it uses less digits than its factorization.

85500801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9500095 (or 9500092 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 85500801 is about 9246.6643174715. The cubic root of 85500801 is about 440.5447814733.

The spelling of 85500801 in words is "eighty-five million, five hundred thousand, eight hundred one".