2205275490289 has 3 divisors (see below), whose sum is σ = 2205276975307. Its totient is φ = 2205274005272.

The previous prime is 2205275490287. The next prime is 2205275490307. The reversal of 2205275490289 is 9820945725022.

The square root of 2205275490289 is 1485017.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2096776400625 + 108499089664 = 1448025^2 + 329392^2 .

It is not a de Polignac number, because 2205275490289 - 2¹ = 2205275490287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2205275490281) 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 2 ways as a sum of consecutive naturals, for example, 742509 + ... + 2227525.

Almost surely, 2^{2205275490289} is an apocalyptic number.

2205275490289 is the 1485017-th square number.

2205275490289 is the 742509-th centered octagonal number.

It is an amenable number.

2205275490289 is a deficient number, since it is larger than the sum of its proper divisors (1485018).

2205275490289 is an frugal number, since it uses more digits than its factorization.

2205275490289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970034 (or 1485017 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 2205275490289 in words is "two trillion, two hundred five billion, two hundred seventy-five million, four hundred ninety thousand, two hundred eighty-nine".