5420335153221 has 20 divisors (see below), whose sum is σ = 8097133719532. Its totient is φ = 3613516671168.

The previous prime is 5420335153187. The next prime is 5420335153229. The reversal of 5420335153221 is 1223515330245.

5420335153221 is a `hidden beast` number, since 5 + 4 + 20 + 33 + 51 + 532 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1343223050625 + 4077112102596 = 1158975^2 + 2019186^2 .

It is not a de Polignac number, because 5420335153221 - 2³⁹ = 4870579339333 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 (5420335153229) 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 19 ways as a sum of consecutive naturals, for example, 8182395 + ... + 8819991.

Almost surely, 2^{5420335153221} is an apocalyptic number.

It is an amenable number.

5420335153221 is a deficient number, since it is larger than the sum of its proper divisors (2676798566311).

5420335153221 is a wasteful number, since it uses less digits than its factorization.

5420335153221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742562 (or 742553 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 5420335153221 in words is "five trillion, four hundred twenty billion, three hundred thirty-five million, one hundred fifty-three thousand, two hundred twenty-one".