55011105501 has 32 divisors (see below), whose sum is σ = 81238671360. Its totient is φ = 32833680000.

The previous prime is 55011105481. The next prime is 55011105529. The reversal of 55011105501 is 10550111055.

It is not a de Polignac number, because 55011105501 - 2¹¹ = 55011103453 is a prime.

It is a super-2 number, since 2×55011105501² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55011105551) 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, 699876 + ... + 774498.

It is an arithmetic number, because the mean of its divisors is an integer number (2538708480).

Almost surely, 2^55011105501 is an apocalyptic number.

It is an amenable number.

55011105501 is a deficient number, since it is larger than the sum of its proper divisors (26227565859).

55011105501 is a wasteful number, since it uses less digits than its factorization.

55011105501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74977.

The product of its (nonzero) digits is 625, while the sum is 24.

Adding to 55011105501 its reverse (10550111055), we get a palindrome (65561216556).

The spelling of 55011105501 in words is "fifty-five billion, eleven million, one hundred five thousand, five hundred one".