55202223020405 has 4 divisors (see below), whose sum is σ = 66242667624492. Its totient is φ = 44161778416320.

The previous prime is 55202223020401. The next prime is 55202223020407. The reversal of 55202223020405 is 50402032220255.

55202223020405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12771824865361 + 42430398155044 = 3573769^2 + 6513862^2 .

It is not a de Polignac number, because 55202223020405 - 2² = 55202223020401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55202223020401) 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 3 ways as a sum of consecutive naturals, for example, 5520222302036 + ... + 5520222302045.

It is an arithmetic number, because the mean of its divisors is an integer number (16560666906123).

Almost surely, 2^{55202223020405} is an apocalyptic number.

It is an amenable number.

55202223020405 is a deficient number, since it is larger than the sum of its proper divisors (11040444604087).

55202223020405 is a wasteful number, since it uses less digits than its factorization.

55202223020405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11040444604086.

The product of its (nonzero) digits is 48000, while the sum is 32.

The spelling of 55202223020405 in words is "fifty-five trillion, two hundred two billion, two hundred twenty-three million, twenty thousand, four hundred five".