55525378844256 has 288 divisors, whose sum is σ = 160799797686528. Its totient is φ = 16742457768960.

The previous prime is 55525378844207. The next prime is 55525378844311. The reversal of 55525378844256 is 65244887352555.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 455076250 + ... + 455198246.

It is an arithmetic number, because the mean of its divisors is an integer number (558332630856).

Almost surely, 2^{55525378844256} 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 55525378844256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80399898843264).

55525378844256 is an abundant number, since it is smaller than the sum of its proper divisors (105274418842272).

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

55525378844256 is a wasteful number, since it uses less digits than its factorization.

55525378844256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122642 (or 122615 counting only the distinct ones).

The product of its digits is 1612800000, while the sum is 69.

The spelling of 55525378844256 in words is "fifty-five trillion, five hundred twenty-five billion, three hundred seventy-eight million, eight hundred forty-four thousand, two hundred fifty-six".