30520332454025 has 6 divisors (see below), whose sum is σ = 37845212243022. Its totient is φ = 24416265963200.

The previous prime is 30520332454009. The next prime is 30520332454091. The reversal of 30520332454025 is 52045423302503.

It can be written as a sum of positive squares in 3 ways, for example, as 8439844229881 + 22080488224144 = 2905141^2 + 4698988^2 .

It is not a de Polignac number, because 30520332454025 - 2⁴ = 30520332454009 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 30520332454025.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 610406649056 + ... + 610406649105.

It is an arithmetic number, because the mean of its divisors is an integer number (6307535373837).

Almost surely, 2^{30520332454025} is an apocalyptic number.

It is an amenable number.

30520332454025 is a deficient number, since it is larger than the sum of its proper divisors (7324879788997).

30520332454025 is a wasteful number, since it uses less digits than its factorization.

30520332454025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220813298171 (or 1220813298166 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 38.

Adding to 30520332454025 its reverse (52045423302503), we get a palindrome (82565755756528).

The spelling of 30520332454025 in words is "thirty trillion, five hundred twenty billion, three hundred thirty-two million, four hundred fifty-four thousand, twenty-five".