55082818140 has 192 divisors, whose sum is σ = 179082731520. Its totient is φ = 12389771520.

The previous prime is 55082818127. The next prime is 55082818157. The reversal of 55082818140 is 4181828055.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 55082818092 and 55082818101.

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 63 ways as a sum of consecutive naturals, for example, 19649979 + ... + 19652781.

It is an arithmetic number, because the mean of its divisors is an integer number (932722560).

Almost surely, 2^55082818140 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 55082818140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89541365760).

55082818140 is an abundant number, since it is smaller than the sum of its proper divisors (123999913380).

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

55082818140 is a wasteful number, since it uses less digits than its factorization.

55082818140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552 (or 3550 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 42.

The spelling of 55082818140 in words is "fifty-five billion, eighty-two million, eight hundred eighteen thousand, one hundred forty".