55005504999543 has 32 divisors (see below), whose sum is σ = 93603760081920. Its totient is φ = 31272165257760.

The previous prime is 55005504999539. The next prime is 55005504999611. The reversal of 55005504999543 is 34599940550055.

It is a happy number.

55005504999543 is a `hidden beast` number, since 5 + 5 + 0 + 0 + 5 + 50 + 499 + 95 + 4 + 3 = 666.

55005504999543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55005504999543 - 2² = 55005504999539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005504999343) 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 31 ways as a sum of consecutive naturals, for example, 738628803 + ... + 738703268.

It is an arithmetic number, because the mean of its divisors is an integer number (2925117502560).

Almost surely, 2^{55005504999543} is an apocalyptic number.

55005504999543 is a deficient number, since it is larger than the sum of its proper divisors (38598255082377).

55005504999543 is a wasteful number, since it uses less digits than its factorization.

55005504999543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477332284 (or 1477332278 counting only the distinct ones).

The product of its (nonzero) digits is 109350000, while the sum is 63.

The spelling of 55005504999543 in words is "fifty-five trillion, five billion, five hundred four million, nine hundred ninety-nine thousand, five hundred forty-three".