55053277785 has 48 divisors (see below), whose sum is σ = 110224333440. Its totient is φ = 25122347520.

The previous prime is 55053277759. The next prime is 55053277817. The reversal of 55053277785 is 58777235055.

55053277785 is a `hidden beast` number, since 550 + 5 + 3 + 2 + 7 + 7 + 7 + 85 = 666.

It is not a de Polignac number, because 55053277785 - 2⁵ = 55053277753 is a prime.

It is a Curzon number.

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 47 ways as a sum of consecutive naturals, for example, 3262725 + ... + 3279554.

It is an arithmetic number, because the mean of its divisors is an integer number (2296340280).

Almost surely, 2^55053277785 is an apocalyptic number.

55053277785 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55053277785 is an abundant number, since it is smaller than the sum of its proper divisors (55171055655).

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

55053277785 is a wasteful number, since it uses less digits than its factorization.

55053277785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6542318 (or 6542315 counting only the distinct ones).

The product of its (nonzero) digits is 10290000, while the sum is 54.

The spelling of 55053277785 in words is "fifty-five billion, fifty-three million, two hundred seventy-seven thousand, seven hundred eighty-five".