55540487847936 has 2048 divisors, whose sum is σ = 202032178790400. Its totient is φ = 13163172986880.

The previous prime is 55540487847899. The next prime is 55540487847979. The reversal of 55540487847936 is 63974878404555.

It is a tau number, because it is divible by the number of its divisors (2048).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 437326675905 + ... + 437326676031.

It is an arithmetic number, because the mean of its divisors is an integer number (98648524800).

Almost surely, 2^{55540487847936} is an apocalyptic number.

55540487847936 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55540487847936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101016089395200).

55540487847936 is an abundant number, since it is smaller than the sum of its proper divisors (146491690942464).

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

55540487847936 is a wasteful number, since it uses less digits than its factorization.

55540487847936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 4064256000, while the sum is 75.

The spelling of 55540487847936 in words is "fifty-five trillion, five hundred forty billion, four hundred eighty-seven million, eight hundred forty-seven thousand, nine hundred thirty-six".