521025242241 has 12 divisors (see below), whose sum is σ = 808120784112. Its totient is φ = 297728709768.

The previous prime is 521025242239. The next prime is 521025242263. The reversal of 521025242241 is 142242520125.

It is not a de Polignac number, because 521025242241 - 2¹ = 521025242239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 521025242199 and 521025242208.

It is not an unprimeable number, because it can be changed into a prime (521025242201) 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 11 ways as a sum of consecutive naturals, for example, 1772194555 + ... + 1772194848.

It is an arithmetic number, because the mean of its divisors is an integer number (67343398676).

Almost surely, 2^521025242241 is an apocalyptic number.

It is an amenable number.

521025242241 is a deficient number, since it is larger than the sum of its proper divisors (287095541871).

521025242241 is a wasteful number, since it uses less digits than its factorization.

521025242241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544389420 (or 3544389413 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 521025242241 its reverse (142242520125), we get a palindrome (663267762366).

The spelling of 521025242241 in words is "five hundred twenty-one billion, twenty-five million, two hundred forty-two thousand, two hundred forty-one".