855603055 has 8 divisors (see below), whose sum is σ = 1031329152. Its totient is φ = 681412128.

The previous prime is 855603053. The next prime is 855603061. The reversal of 855603055 is 550306558.

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 855603055 - 2¹ = 855603053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855603053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382564 + ... + 384793.

It is an arithmetic number, because the mean of its divisors is an integer number (128916144).

Almost surely, 2^855603055 is an apocalyptic number.

855603055 is a deficient number, since it is larger than the sum of its proper divisors (175726097).

855603055 is a wasteful number, since it uses less digits than its factorization.

855603055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767585.

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 855603055 is about 29250.6932396482. The cubic root of 855603055 is about 949.3450906364.

The spelling of 855603055 in words is "eight hundred fifty-five million, six hundred three thousand, fifty-five".