55115051111 has 8 divisors (see below), whose sum is σ = 55545210864. Its totient is φ = 54685034560.

The previous prime is 55115051083. The next prime is 55115051137. The reversal of 55115051111 is 11115051155.

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 55115051111 - 2¹⁴ = 55115034727 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 (55115051191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815465 + ... + 880461.

It is an arithmetic number, because the mean of its divisors is an integer number (6943151358).

Almost surely, 2^55115051111 is an apocalyptic number.

55115051111 is a deficient number, since it is larger than the sum of its proper divisors (430159753).

55115051111 is a wasteful number, since it uses less digits than its factorization.

55115051111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71601.

The product of its (nonzero) digits is 625, while the sum is 26.

The spelling of 55115051111 in words is "fifty-five billion, one hundred fifteen million, fifty-one thousand, one hundred eleven".