544404440225 has 24 divisors (see below), whose sum is σ = 710691759840. Its totient is φ = 412542789120.

The previous prime is 544404440221. The next prime is 544404440299. The reversal of 544404440225 is 522044404445.

It is not a de Polignac number, because 544404440225 - 2² = 544404440221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (544404440221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3434162 + ... + 3589188.

It is an arithmetic number, because the mean of its divisors is an integer number (29612156660).

Almost surely, 2^544404440225 is an apocalyptic number.

It is an amenable number.

544404440225 is a deficient number, since it is larger than the sum of its proper divisors (166287319615).

544404440225 is a wasteful number, since it uses less digits than its factorization.

544404440225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162449 (or 162444 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 38.

The spelling of 544404440225 in words is "five hundred forty-four billion, four hundred four million, four hundred forty thousand, two hundred twenty-five".