563352420425621 has 4 divisors (see below), whose sum is σ = 567788266255872. Its totient is φ = 558916574595372.

The previous prime is 563352420425551. The next prime is 563352420425623. The reversal of 563352420425621 is 126524024253365.

563352420425621 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-563352420425621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 563352420425621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563352420425623) 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, 2217922914935 + ... + 2217922915188.

It is an arithmetic number, because the mean of its divisors is an integer number (141947066563968).

Almost surely, 2^{563352420425621} is an apocalyptic number.

It is an amenable number.

563352420425621 is a deficient number, since it is larger than the sum of its proper divisors (4435845830251).

563352420425621 is a wasteful number, since it uses less digits than its factorization.

563352420425621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435845830250.

The product of its (nonzero) digits is 10368000, while the sum is 50.

Adding to 563352420425621 its reverse (126524024253365), we get a palindrome (689876444678986).

The spelling of 563352420425621 in words is "five hundred sixty-three trillion, three hundred fifty-two billion, four hundred twenty million, four hundred twenty-five thousand, six hundred twenty-one".