5242447406221 has 8 divisors (see below), whose sum is σ = 5275898643744. Its totient is φ = 5208996926640.

The previous prime is 5242447406129. The next prime is 5242447406293. The reversal of 5242447406221 is 1226047442425.

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 5242447406221 - 2³⁷ = 5105008452749 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 (5242447406921) 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, 21793026 + ... + 22032268.

It is an arithmetic number, because the mean of its divisors is an integer number (659487330468).

Almost surely, 2^{5242447406221} is an apocalyptic number.

It is an amenable number.

5242447406221 is a deficient number, since it is larger than the sum of its proper divisors (33451237523).

5242447406221 is a wasteful number, since it uses less digits than its factorization.

5242447406221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378971.

The product of its (nonzero) digits is 860160, while the sum is 43.

The spelling of 5242447406221 in words is "five trillion, two hundred forty-two billion, four hundred forty-seven million, four hundred six thousand, two hundred twenty-one".