520273536221 has 8 divisors (see below), whose sum is σ = 521889378624. Its totient is φ = 518659938720.

The previous prime is 520273536217. The next prime is 520273536227. The reversal of 520273536221 is 122635372025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520273536221 - 2² = 520273536217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520273536227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96395 + ... + 1024616.

It is an arithmetic number, because the mean of its divisors is an integer number (65236172328).

Almost surely, 2^520273536221 is an apocalyptic number.

It is an amenable number.

520273536221 is a deficient number, since it is larger than the sum of its proper divisors (1615842403).

520273536221 is a wasteful number, since it uses less digits than its factorization.

520273536221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122451.

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 520273536221 in words is "five hundred twenty billion, two hundred seventy-three million, five hundred thirty-six thousand, two hundred twenty-one".