55855831085 has 8 divisors (see below), whose sum is σ = 69941214720. Its totient is φ = 42741853264.

The previous prime is 55855831081. The next prime is 55855831121. The reversal of 55855831085 is 58013855855.

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 55855831085 - 2² = 55855831081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55855831081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242851325 + ... + 242851554.

It is an arithmetic number, because the mean of its divisors is an integer number (8742651840).

Almost surely, 2^55855831085 is an apocalyptic number.

It is an amenable number.

55855831085 is a deficient number, since it is larger than the sum of its proper divisors (14085383635).

55855831085 is a wasteful number, since it uses less digits than its factorization.

55855831085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485702907.

The product of its (nonzero) digits is 4800000, while the sum is 53.

The spelling of 55855831085 in words is "fifty-five billion, eight hundred fifty-five million, eight hundred thirty-one thousand, eighty-five".