55545502133504 has 72 divisors (see below), whose sum is σ = 113914321040520. Its totient is φ = 27011766878208.

The previous prime is 55545502133503. The next prime is 55545502133533. The reversal of 55545502133504 is 40533120554555.

It can be written as a sum of positive squares in 4 ways, for example, as 34359292422400 + 21186209711104 = 5861680^2 + 4602848^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55545502133503) 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 7 ways as a sum of consecutive naturals, for example, 23588612 + ... + 25836284.

It is an arithmetic number, because the mean of its divisors is an integer number (1582143347785).

Almost surely, 2^{55545502133504} 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 55545502133504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56957160520260).

55545502133504 is an abundant number, since it is smaller than the sum of its proper divisors (58368818907016).

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

55545502133504 is a wasteful number, since it uses less digits than its factorization.

55545502133504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250335 (or 2250321 counting only the distinct ones).

The product of its (nonzero) digits is 4500000, while the sum is 47.

The spelling of 55545502133504 in words is "fifty-five trillion, five hundred forty-five billion, five hundred two million, one hundred thirty-three thousand, five hundred four".