55531170185 has 8 divisors (see below), whose sum is σ = 68262707016. Its totient is φ = 43341400960.

The previous prime is 55531170137. The next prime is 55531170199. The reversal of 55531170185 is 58107113555.

It can be written as a sum of positive squares in 4 ways, for example, as 2786995264 + 52744174921 = 52792^2 + 229661^2 .

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

It is not a de Polignac number, because 55531170185 - 2⁸ = 55531169929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

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, 135441674 + ... + 135442083.

It is an arithmetic number, because the mean of its divisors is an integer number (8532838377).

Almost surely, 2^55531170185 is an apocalyptic number.

It is an amenable number.

55531170185 is a deficient number, since it is larger than the sum of its proper divisors (12731536831).

55531170185 is a wasteful number, since it uses less digits than its factorization.

55531170185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270883803.

The product of its (nonzero) digits is 105000, while the sum is 41.

The spelling of 55531170185 in words is "fifty-five billion, five hundred thirty-one million, one hundred seventy thousand, one hundred eighty-five".