55111055100550 has 24 divisors (see below), whose sum is σ = 102519656402400. Its totient is φ = 22041606144480.

The previous prime is 55111055100509. The next prime is 55111055100553. The reversal of 55111055100550 is 5500155011155.

55111055100550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55111055100550² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55111055100553) 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 11 ways as a sum of consecutive naturals, for example, 70002030 + ... + 70784929.

It is an arithmetic number, because the mean of its divisors is an integer number (4271652350100).

Almost surely, 2^{55111055100550} is an apocalyptic number.

55111055100550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55111055100550 is a deficient number, since it is larger than the sum of its proper divisors (47408601301850).

55111055100550 is a wasteful number, since it uses less digits than its factorization.

55111055100550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140794800 (or 140794795 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 34.

The spelling of 55111055100550 in words is "fifty-five trillion, one hundred eleven billion, fifty-five million, one hundred thousand, five hundred fifty".