563021420 has 24 divisors (see below), whose sum is σ = 1273295184. Its totient is φ = 207884736.

The previous prime is 563021377. The next prime is 563021429. The reversal of 563021420 is 24120365.

It is not an unprimeable number, because it can be changed into a prime (563021429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1082474 + ... + 1082993.

It is an arithmetic number, because the mean of its divisors is an integer number (53053966).

Almost surely, 2^563021420 is an apocalyptic number.

It is an amenable number.

563021420 is an abundant number, since it is smaller than the sum of its proper divisors (710273764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

563021420 is a wasteful number, since it uses less digits than its factorization.

563021420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165489 (or 2165487 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 563021420 is about 23728.0724038005. The cubic root of 563021420 is about 825.7367987711.

Adding to 563021420 its reverse (24120365), we get a palindrome (587141785).

The spelling of 563021420 in words is "five hundred sixty-three million, twenty-one thousand, four hundred twenty".