321823617025 has 27 divisors (see below), whose sum is σ = 417250728489. Its totient is φ = 246215106720.

The previous prime is 321823617023. The next prime is 321823617029. The reversal of 321823617025 is 520716328123.

The square root of 321823617025 is 567295.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 34733404161 + 287090212864 = 186369^2 + 535808^2 .

It is not a de Polignac number, because 321823617025 - 2¹ = 321823617023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321823617023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 65236459 + ... + 65241391.

Almost surely, 2^321823617025 is an apocalyptic number.

321823617025 is the 567295-th square number.

321823617025 is the 283648-th centered octagonal number.

It is an amenable number.

321823617025 is a deficient number, since it is larger than the sum of its proper divisors (95427111464).

321823617025 is an frugal number, since it uses more digits than its factorization.

321823617025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9922 (or 4961 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 321823617025 in words is "three hundred twenty-one billion, eight hundred twenty-three million, six hundred seventeen thousand, twenty-five".