563342421 has 4 divisors (see below), whose sum is σ = 751123232. Its totient is φ = 375561612.

The previous prime is 563342407. The next prime is 563342449. The reversal of 563342421 is 124243365.

563342421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 563342421 - 2⁵ = 563342389 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 (563342401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93890401 + ... + 93890406.

It is an arithmetic number, because the mean of its divisors is an integer number (187780808).

Almost surely, 2^563342421 is an apocalyptic number.

It is an amenable number.

563342421 is a deficient number, since it is larger than the sum of its proper divisors (187780811).

563342421 is a wasteful number, since it uses less digits than its factorization.

563342421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187780810.

The product of its digits is 17280, while the sum is 30.

The square root of 563342421 is about 23734.8356008631. The cubic root of 563342421 is about 825.8936974671.

Adding to 563342421 its reverse (124243365), we get a palindrome (687585786).

The spelling of 563342421 in words is "five hundred sixty-three million, three hundred forty-two thousand, four hundred twenty-one".