855899755 has 8 divisors (see below), whose sum is σ = 1037249424. Its totient is φ = 677940000.

The previous prime is 855899749. The next prime is 855899771. The reversal of 855899755 is 557998558.

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

It is not a de Polignac number, because 855899755 - 2³ = 855899747 is a prime.

It is a super-3 number, since 3×855899755³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 855899693 and 855899702.

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, 846921 + ... + 847930.

It is an arithmetic number, because the mean of its divisors is an integer number (129656178).

Almost surely, 2^855899755 is an apocalyptic number.

855899755 is a deficient number, since it is larger than the sum of its proper divisors (181349669).

855899755 is a wasteful number, since it uses less digits than its factorization.

855899755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694957.

The product of its digits is 22680000, while the sum is 61.

The square root of 855899755 is about 29255.7644747151. The cubic root of 855899755 is about 949.4548136886.

The spelling of 855899755 in words is "eight hundred fifty-five million, eight hundred ninety-nine thousand, seven hundred fifty-five".