55505194382508 has 192 divisors, whose sum is σ = 148187261376000. Its totient is φ = 16028512782336.

The previous prime is 55505194382503. The next prime is 55505194382509. The reversal of 55505194382508 is 80528349150555.

It is not an unprimeable number, because it can be changed into a prime (55505194382503) 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, 2690889691 + ... + 2690910317.

It is an arithmetic number, because the mean of its divisors is an integer number (771808653000).

Almost surely, 2^{55505194382508} 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 55505194382508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74093630688000).

55505194382508 is an abundant number, since it is smaller than the sum of its proper divisors (92682066993492).

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

55505194382508 is a wasteful number, since it uses less digits than its factorization.

55505194382508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29104 (or 29102 counting only the distinct ones).

The product of its (nonzero) digits is 43200000, while the sum is 60.

The spelling of 55505194382508 in words is "fifty-five trillion, five hundred five billion, one hundred ninety-four million, three hundred eighty-two thousand, five hundred eight".