55006111105551 has 12 divisors (see below), whose sum is σ = 79521122399160. Its totient is φ = 36639424982160.

The previous prime is 55006111105501. The next prime is 55006111105567. The reversal of 55006111105551 is 15550111160055.

55006111105551 is a `hidden beast` number, since 550 + 0 + 6 + 1 + 1 + 1 + 1 + 0 + 55 + 51 = 666.

It is not a de Polignac number, because 55006111105551 - 2⁶ = 55006111105487 is a prime.

It is a super-3 number, since 3×55006111105551³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55006111105501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2609635116 + ... + 2609656193.

It is an arithmetic number, because the mean of its divisors is an integer number (6626760199930).

Almost surely, 2^{55006111105551} is an apocalyptic number.

55006111105551 is a deficient number, since it is larger than the sum of its proper divisors (24515011293609).

55006111105551 is a wasteful number, since it uses less digits than its factorization.

55006111105551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5219292486 (or 5219292483 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 36.

The spelling of 55006111105551 in words is "fifty-five trillion, six billion, one hundred eleven million, one hundred five thousand, five hundred fifty-one".