2444449925 has 6 divisors (see below), whose sum is σ = 3031117938. Its totient is φ = 1955559920.

The previous prime is 2444449877. The next prime is 2444449927. The reversal of 2444449925 is 5299444442.

It can be written as a sum of positive squares in 3 ways, for example, as 550981729 + 1893468196 = 23473^2 + 43514^2 .

It is not a de Polignac number, because 2444449925 - 2²² = 2440255621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2444449925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2444449927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48888974 + ... + 48889023.

It is an arithmetic number, because the mean of its divisors is an integer number (505186323).

Almost surely, 2^2444449925 is an apocalyptic number.

2444449925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2444449925 is a deficient number, since it is larger than the sum of its proper divisors (586668013).

2444449925 is an equidigital number, since it uses as much as digits as its factorization.

2444449925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97778007 (or 97778002 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 47.

The square root of 2444449925 is about 49441.3786721204. The cubic root of 2444449925 is about 1347.0810136115.

The spelling of 2444449925 in words is "two billion, four hundred forty-four million, four hundred forty-nine thousand, nine hundred twenty-five".