55755520509444 has 192 divisors, whose sum is σ = 160181980987392. Its totient is φ = 14743101542400.

The previous prime is 55755520509439. The next prime is 55755520509449. The reversal of 55755520509444 is 44490502555755.

It is an interprime number because it is at equal distance from previous prime (55755520509439) and next prime (55755520509449).

It is not an unprimeable number, because it can be changed into a prime (55755520509449) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 313565524 + ... + 313743284.

It is an arithmetic number, because the mean of its divisors is an integer number (834281150976).

Almost surely, 2^{55755520509444} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55755520509444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80090990493696).

55755520509444 is an abundant number, since it is smaller than the sum of its proper divisors (104426460477948).

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

55755520509444 is a wasteful number, since it uses less digits than its factorization.

55755520509444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183066 (or 183064 counting only the distinct ones).

The product of its (nonzero) digits is 126000000, while the sum is 60.

The spelling of 55755520509444 in words is "fifty-five trillion, seven hundred fifty-five billion, five hundred twenty million, five hundred nine thousand, four hundred forty-four".