55000505499991 has 8 divisors (see below), whose sum is σ = 55038304947600. Its totient is φ = 54962716776192.

The previous prime is 55000505499983. The next prime is 55000505500007. The reversal of 55000505499991 is 19999450500055.

55000505499991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55000505499991 - 2³ = 55000505499983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000505499091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7593735 + ... + 12948583.

It is an arithmetic number, because the mean of its divisors is an integer number (6879788118450).

Almost surely, 2^{55000505499991} is an apocalyptic number.

55000505499991 is a deficient number, since it is larger than the sum of its proper divisors (37799447609).

55000505499991 is a wasteful number, since it uses less digits than its factorization.

55000505499991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361905.

The product of its (nonzero) digits is 16402500, while the sum is 61.

The spelling of 55000505499991 in words is "fifty-five trillion, five hundred five million, four hundred ninety-nine thousand, nine hundred ninety-one".