55505055555547 has 8 divisors (see below), whose sum is σ = 59995245974720. Its totient is φ = 51046375245120.

The previous prime is 55505055555517. The next prime is 55505055555559. The reversal of 55505055555547 is 74555555050555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55505055555547 - 2¹¹ = 55505055553499 is a prime.

It is a super-2 number, since 2×55505055555547² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55505055555517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7877523522 + ... + 7877530567.

It is an arithmetic number, because the mean of its divisors is an integer number (7499405746840).

Almost surely, 2^{55505055555547} is an apocalyptic number.

55505055555547 is a deficient number, since it is larger than the sum of its proper divisors (4490190419173).

55505055555547 is a wasteful number, since it uses less digits than its factorization.

55505055555547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15755054373.

The product of its (nonzero) digits is 273437500, while the sum is 61.

The spelling of 55505055555547 in words is "fifty-five trillion, five hundred five billion, fifty-five million, five hundred fifty-five thousand, five hundred forty-seven".