2044421505425 has 24 divisors (see below), whose sum is σ = 2741806247544. Its totient is φ = 1503247080960.

The previous prime is 2044421505289. The next prime is 2044421505521. The reversal of 2044421505425 is 5245051244402.

It can be written as a sum of positive squares in 12 ways, for example, as 1435091390209 + 609330115216 = 1197953^2 + 780596^2 .

It is not a de Polignac number, because 2044421505425 - 2¹⁸ = 2044421243281 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13423262 + ... + 13574711.

It is an arithmetic number, because the mean of its divisors is an integer number (114241926981).

Almost surely, 2^{2044421505425} is an apocalyptic number.

2044421505425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2044421505425 is a deficient number, since it is larger than the sum of its proper divisors (697384742119).

2044421505425 is a wasteful number, since it uses less digits than its factorization.

2044421505425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26998229 (or 26998224 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 2044421505425 its reverse (5245051244402), we get a palindrome (7289472749827).

The spelling of 2044421505425 in words is "two trillion, forty-four billion, four hundred twenty-one million, five hundred five thousand, four hundred twenty-five".