55100205211027 has 4 divisors (see below), whose sum is σ = 55668248563816. Its totient is φ = 54532161858240.

The previous prime is 55100205210959. The next prime is 55100205211033. The reversal of 55100205211027 is 72011250200155.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55100205211027 - 2¹⁹ = 55100204686739 is a prime.

It is a super-2 number, since 2×55100205211027² (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 55100205211027.

It is not an unprimeable number, because it can be changed into a prime (55100205211097) 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 3 ways as a sum of consecutive naturals, for example, 284021676249 + ... + 284021676442.

It is an arithmetic number, because the mean of its divisors is an integer number (13917062140954).

Almost surely, 2^{55100205211027} is an apocalyptic number.

55100205211027 is a deficient number, since it is larger than the sum of its proper divisors (568043352789).

55100205211027 is an equidigital number, since it uses as much as digits as its factorization.

55100205211027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568043352788.

The product of its (nonzero) digits is 7000, while the sum is 31.

The spelling of 55100205211027 in words is "fifty-five trillion, one hundred billion, two hundred five million, two hundred eleven thousand, twenty-seven".