55273086185 has 4 divisors (see below), whose sum is σ = 66327703428. Its totient is φ = 44218468944.

The previous prime is 55273086161. The next prime is 55273086191. The reversal of 55273086185 is 58168037255.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37948208809 + 17324877376 = 194803^2 + 131624^2 .

It is a cyclic number.

It is not a de Polignac number, because 55273086185 - 2¹² = 55273082089 is a prime.

It is a super-2 number, since 2×55273086185² (a number of 22 digits) contains 22 as substring.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 5527308614 + ... + 5527308623.

It is an arithmetic number, because the mean of its divisors is an integer number (16581925857).

Almost surely, 2^55273086185 is an apocalyptic number.

It is an amenable number.

55273086185 is a deficient number, since it is larger than the sum of its proper divisors (11054617243).

55273086185 is a wasteful number, since it uses less digits than its factorization.

55273086185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11054617242.

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 55273086185 in words is "fifty-five billion, two hundred seventy-three million, eighty-six thousand, one hundred eighty-five".