2205251055545 has 4 divisors (see below), whose sum is σ = 2646301266660. Its totient is φ = 1764200844432.

The previous prime is 2205251055499. The next prime is 2205251055611. The reversal of 2205251055545 is 5455501525022.

2205251055545 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 1294698071104 + 910552984441 = 1137848^2 + 954229^2 .

It is a cyclic number.

It is not a de Polignac number, because 2205251055545 - 2¹⁸ = 2205250793401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220525105550 + ... + 220525105559.

It is an arithmetic number, because the mean of its divisors is an integer number (661575316665).

Almost surely, 2^{2205251055545} is an apocalyptic number.

It is an amenable number.

2205251055545 is a deficient number, since it is larger than the sum of its proper divisors (441050211115).

2205251055545 is an equidigital number, since it uses as much as digits as its factorization.

2205251055545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441050211114.

The product of its (nonzero) digits is 500000, while the sum is 41.

The spelling of 2205251055545 in words is "two trillion, two hundred five billion, two hundred fifty-one million, fifty-five thousand, five hundred forty-five".