563350404321221 has 16 divisors (see below), whose sum is σ = 614771659519488. Its totient is φ = 511963755758400.

The previous prime is 563350404321209. The next prime is 563350404321329. The reversal of 563350404321221 is 122123404053365.

It is not a de Polignac number, because 563350404321221 - 2¹⁸ = 563350404059077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563350404321821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1273546316 + ... + 1273988586.

It is an arithmetic number, because the mean of its divisors is an integer number (38423228719968).

Almost surely, 2^{563350404321221} is an apocalyptic number.

It is an amenable number.

563350404321221 is a deficient number, since it is larger than the sum of its proper divisors (51421255198267).

563350404321221 is a wasteful number, since it uses less digits than its factorization.

563350404321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481132.

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 563350404321221 its reverse (122123404053365), we get a palindrome (685473808374586).

The spelling of 563350404321221 in words is "five hundred sixty-three trillion, three hundred fifty billion, four hundred four million, three hundred twenty-one thousand, two hundred twenty-one".