55186828060 has 288 divisors, whose sum is σ = 149100618240. Its totient is φ = 16706787840.

The previous prime is 55186828033. The next prime is 55186828079. The reversal of 55186828060 is 6082868155.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55186827995 and 55186828013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 243113667 + ... + 243113893.

It is an arithmetic number, because the mean of its divisors is an integer number (517710480).

Almost surely, 2^55186828060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55186828060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74550309120).

55186828060 is an abundant number, since it is smaller than the sum of its proper divisors (93913790180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55186828060 is a wasteful number, since it uses less digits than its factorization.

55186828060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 49.

The spelling of 55186828060 in words is "fifty-five billion, one hundred eighty-six million, eight hundred twenty-eight thousand, sixty".