521650060221 has 8 divisors (see below), whose sum is σ = 701914454560. Its totient is φ = 344576186352.

The previous prime is 521650060189. The next prime is 521650060231. The reversal of 521650060221 is 122060056125.

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

It is not a de Polignac number, because 521650060221 - 2⁵ = 521650060189 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 (521650060231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797629735 + ... + 797630388.

It is an arithmetic number, because the mean of its divisors is an integer number (87739306820).

Almost surely, 2^521650060221 is an apocalyptic number.

It is an amenable number.

521650060221 is a deficient number, since it is larger than the sum of its proper divisors (180264394339).

521650060221 is a wasteful number, since it uses less digits than its factorization.

521650060221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595260235.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 521650060221 in words is "five hundred twenty-one billion, six hundred fifty million, sixty thousand, two hundred twenty-one".