55856436884 has 6 divisors (see below), whose sum is σ = 97748764554. Its totient is φ = 27928218440.

The previous prime is 55856436851. The next prime is 55856436887. The reversal of 55856436884 is 48863465855.

It can be written as a sum of positive squares in only one way, i.e., 55328448400 + 527988484 = 235220^2 + 22978^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55856436887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6982054607 + ... + 6982054614.

It is an arithmetic number, because the mean of its divisors is an integer number (16291460759).

Almost surely, 2^55856436884 is an apocalyptic number.

It is an amenable number.

55856436884 is a deficient number, since it is larger than the sum of its proper divisors (41892327670).

55856436884 is a wasteful number, since it uses less digits than its factorization.

55856436884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13964109225 (or 13964109223 counting only the distinct ones).

The product of its digits is 110592000, while the sum is 62.

The spelling of 55856436884 in words is "fifty-five billion, eight hundred fifty-six million, four hundred thirty-six thousand, eight hundred eighty-four".