55383839955 has 48 divisors (see below), whose sum is σ = 101077616640. Its totient is φ = 27976104000.

The previous prime is 55383839887. The next prime is 55383839981. The reversal of 55383839955 is 55993838355.

55383839955 is a `hidden beast` number, since 5 + 538 + 3 + 8 + 3 + 9 + 95 + 5 = 666.

It is not a de Polignac number, because 55383839955 - 2²⁰ = 55382791379 is a prime.

It is a super-2 number, since 2×55383839955² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55383839892 and 55383839901.

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, 4997070 + ... + 5008140.

It is an arithmetic number, because the mean of its divisors is an integer number (2105783680).

Almost surely, 2^55383839955 is an apocalyptic number.

55383839955 is a deficient number, since it is larger than the sum of its proper divisors (45693776685).

55383839955 is a wasteful number, since it uses less digits than its factorization.

55383839955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16952 (or 16949 counting only the distinct ones).

The product of its digits is 87480000, while the sum is 63.

The spelling of 55383839955 in words is "fifty-five billion, three hundred eighty-three million, eight hundred thirty-nine thousand, nine hundred fifty-five".