55857134181 has 16 divisors (see below), whose sum is σ = 74809107648. Its totient is φ = 37071724800.

The previous prime is 55857134171. The next prime is 55857134227. The reversal of 55857134181 is 18143175855.

It is a happy number.

It is not a de Polignac number, because 55857134181 - 2¹⁵ = 55857101413 is a prime.

It is a super-3 number, since 3×55857134181³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 55857134181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55857134171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2647966 + ... + 2668976.

It is an arithmetic number, because the mean of its divisors is an integer number (4675569228).

Almost surely, 2^55857134181 is an apocalyptic number.

It is an amenable number.

55857134181 is a deficient number, since it is larger than the sum of its proper divisors (18951973467).

55857134181 is a wasteful number, since it uses less digits than its factorization.

55857134181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24932.

The product of its digits is 672000, while the sum is 48.

The spelling of 55857134181 in words is "fifty-five billion, eight hundred fifty-seven million, one hundred thirty-four thousand, one hundred eighty-one".