55181742050 has 54 divisors (see below), whose sum is σ = 103816125153. Its totient is φ = 21822210480.

The previous prime is 55181742023. The next prime is 55181742137. The reversal of 55181742050 is 5024718155.

It can be written as a sum of positive squares in 2 ways, for example, as 54078107209 + 1103634841 = 232547^2 + 33221^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=166105.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55181741995 and 55181742013.

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 26 ways as a sum of consecutive naturals, for example, 230885831 + ... + 230886069.

Almost surely, 2^55181742050 is an apocalyptic number.

55181742050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55181742050 is a deficient number, since it is larger than the sum of its proper divisors (48634383103).

55181742050 is an equidigital number, since it uses as much as digits as its factorization.

55181742050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 38.

The spelling of 55181742050 in words is "fifty-five billion, one hundred eighty-one million, seven hundred forty-two thousand, fifty".