55500101111 has 16 divisors (see below), whose sum is σ = 69130811904. Its totient is φ = 43383099744.

The previous prime is 55500101101. The next prime is 55500101131. The reversal of 55500101111 is 11110100555.

It is a cyclic number.

It is not a de Polignac number, because 55500101111 - 2¹⁰ = 55500100087 is a prime.

It is a super-2 number, since 2×55500101111² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55500101101) 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 15 ways as a sum of consecutive naturals, for example, 3666491 + ... + 3681596.

It is an arithmetic number, because the mean of its divisors is an integer number (4320675744).

Almost surely, 2^55500101111 is an apocalyptic number.

55500101111 is a deficient number, since it is larger than the sum of its proper divisors (13630710793).

55500101111 is a wasteful number, since it uses less digits than its factorization.

55500101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7348190.

The product of its (nonzero) digits is 125, while the sum is 20.

Adding to 55500101111 its reverse (11110100555), we get a palindrome (66610201666).

The spelling of 55500101111 in words is "fifty-five billion, five hundred million, one hundred one thousand, one hundred eleven".