440431013504525 has 6 divisors (see below), whose sum is σ = 546134456745642. Its totient is φ = 352344810803600.

The previous prime is 440431013504513. The next prime is 440431013504539. The reversal of 440431013504525 is 525405310134044.

It can be written as a sum of positive squares in 3 ways, for example, as 48421821699241 + 392009191805284 = 6958579^2 + 19799222^2 .

It is not a de Polignac number, because 440431013504525 - 2²⁰ = 440431012455949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8808620270066 + ... + 8808620270115.

It is an arithmetic number, because the mean of its divisors is an integer number (91022409457607).

Almost surely, 2^{440431013504525} is an apocalyptic number.

It is an amenable number.

440431013504525 is a deficient number, since it is larger than the sum of its proper divisors (105703443241117).

440431013504525 is a wasteful number, since it uses less digits than its factorization.

440431013504525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17617240540191 (or 17617240540186 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 440431013504525 its reverse (525405310134044), we get a palindrome (965836323638569).

The spelling of 440431013504525 in words is "four hundred forty trillion, four hundred thirty-one billion, thirteen million, five hundred four thousand, five hundred twenty-five".