55386809072 has 40 divisors (see below), whose sum is σ = 126871269600. Its totient is φ = 22918678272.

The previous prime is 55386809053. The next prime is 55386809083. The reversal of 55386809072 is 27090868355.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 8523047 + ... + 8529542.

It is an arithmetic number, because the mean of its divisors is an integer number (3171781740).

Almost surely, 2^55386809072 is an apocalyptic number.

It is an amenable number.

55386809072 is an abundant number, since it is smaller than the sum of its proper divisors (71484460528).

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

55386809072 is a wasteful number, since it uses less digits than its factorization.

55386809072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17052633 (or 17052627 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 55386809072 in words is "fifty-five billion, three hundred eighty-six million, eight hundred nine thousand, seventy-two".