85801855 has 8 divisors (see below), whose sum is σ = 103062672. Its totient is φ = 68574528.

The previous prime is 85801847. The next prime is 85801879. The reversal of 85801855 is 55810858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85801855 - 2³ = 85801847 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 2337 + ... + 13306.

It is an arithmetic number, because the mean of its divisors is an integer number (12882834).

Almost surely, 2^85801855 is an apocalyptic number.

85801855 is a deficient number, since it is larger than the sum of its proper divisors (17260817).

85801855 is a wasteful number, since it uses less digits than its factorization.

85801855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16745.

The product of its (nonzero) digits is 64000, while the sum is 40.

The square root of 85801855 is about 9262.9290723831. The cubic root of 85801855 is about 441.0612382672.

The spelling of 85801855 in words is "eighty-five million, eight hundred one thousand, eight hundred fifty-five".