55111001100505 has 8 divisors (see below), whose sum is σ = 75580801509312. Its totient is φ = 37790400754608.

The previous prime is 55111001100481. The next prime is 55111001100511. The reversal of 55111001100505 is 50500110011155.

55111001100505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55111001100505 - 2⁹ = 55111001099993 is a prime.

It is a super-2 number, since 2×55111001100505² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55111001100505.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 787300015687 + ... + 787300015756.

It is an arithmetic number, because the mean of its divisors is an integer number (9447600188664).

Almost surely, 2^{55111001100505} is an apocalyptic number.

It is an amenable number.

55111001100505 is a deficient number, since it is larger than the sum of its proper divisors (20469800408807).

55111001100505 is a wasteful number, since it uses less digits than its factorization.

55111001100505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574600031455.

The product of its (nonzero) digits is 625, while the sum is 25.

The spelling of 55111001100505 in words is "fifty-five trillion, one hundred eleven billion, one million, one hundred thousand, five hundred five".