55819748448 has 144 divisors (see below), whose sum is σ = 164373300000. Its totient is φ = 17947238400.

The previous prime is 55819748437. The next prime is 55819748449. The reversal of 55819748448 is 84484791855.

55819748448 is a `hidden beast` number, since 5 + 581 + 9 + 7 + 4 + 8 + 4 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55819748449) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 10428973 + ... + 10434323.

It is an arithmetic number, because the mean of its divisors is an integer number (1141481250).

Almost surely, 2^55819748448 is an apocalyptic number.

55819748448 is a gapful number since it is divisible by the number (58) 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 55819748448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82186650000).

55819748448 is an abundant number, since it is smaller than the sum of its proper divisors (108553551552).

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

55819748448 is a wasteful number, since it uses less digits than its factorization.

55819748448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6645 (or 6634 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 63.

The spelling of 55819748448 in words is "fifty-five billion, eight hundred nineteen million, seven hundred forty-eight thousand, four hundred forty-eight".