531321441025 has 6 divisors (see below), whose sum is σ = 658838586902. Its totient is φ = 425057152800.

The previous prime is 531321440989. The next prime is 531321441041. The reversal of 531321441025 is 520144123135.

It can be written as a sum of positive squares in 3 ways, for example, as 20395267344 + 510926173681 = 142812^2 + 714791^2 .

It is not a de Polignac number, because 531321441025 - 2¹³ = 531321432833 is a prime.

It is a Duffinian 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, 10626428796 + ... + 10626428845.

Almost surely, 2^531321441025 is an apocalyptic number.

It is an amenable number.

531321441025 is a deficient number, since it is larger than the sum of its proper divisors (127517145877).

531321441025 is a wasteful number, since it uses less digits than its factorization.

531321441025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21252857651 (or 21252857646 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 531321441025 in words is "five hundred thirty-one billion, three hundred twenty-one million, four hundred forty-one thousand, twenty-five".