244400544425 has 12 divisors (see below), whose sum is σ = 303380137116. Its totient is φ = 195311750400.

The previous prime is 244400544397. The next prime is 244400544491. The reversal of 244400544425 is 524445004442.

It can be written as a sum of positive squares in 6 ways, for example, as 46991834176 + 197408710249 = 216776^2 + 444307^2 .

It is not a de Polignac number, because 244400544425 - 2⁸ = 244400544169 is a prime.

It is a super-2 number, since 2×244400544425² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5193236 + ... + 5240085.

It is an arithmetic number, because the mean of its divisors is an integer number (25281678093).

Almost surely, 2^244400544425 is an apocalyptic number.

244400544425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

244400544425 is a deficient number, since it is larger than the sum of its proper divisors (58979592691).

244400544425 is a wasteful number, since it uses less digits than its factorization.

244400544425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10434268 (or 10434263 counting only the distinct ones).

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

Adding to 244400544425 its reverse (524445004442), we get a palindrome (768845548867).

The spelling of 244400544425 in words is "two hundred forty-four billion, four hundred million, five hundred forty-four thousand, four hundred twenty-five".