855550855 has 8 divisors (see below), whose sum is σ = 1026818064. Its totient is φ = 684336000.

The previous prime is 855550847. The next prime is 855550877. The reversal of 855550855 is 558055558.

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

It is not a de Polignac number, because 855550855 - 2³ = 855550847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56880 + ... + 70330.

It is an arithmetic number, because the mean of its divisors is an integer number (128352258).

Almost surely, 2^855550855 is an apocalyptic number.

855550855 is a deficient number, since it is larger than the sum of its proper divisors (171267209).

855550855 is a wasteful number, since it uses less digits than its factorization.

855550855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26177.

The product of its (nonzero) digits is 1000000, while the sum is 46.

The square root of 855550855 is about 29249.8009394936. The cubic root of 855550855 is about 949.3257838557.

The spelling of 855550855 in words is "eight hundred fifty-five million, five hundred fifty thousand, eight hundred fifty-five".