562819921 has 2 divisors, whose sum is σ = 562819922. Its totient is φ = 562819920.

The previous prime is 562819903. The next prime is 562819949. The reversal of 562819921 is 129918265.

562819921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 562211521 + 608400 = 23711^2 + 780^2 .

It is a cyclic number.

It is not a de Polignac number, because 562819921 - 2⁵ = 562819889 is a prime.

It is not a weakly prime, because it can be changed into another prime (562819951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281409960 + 281409961.

It is an arithmetic number, because the mean of its divisors is an integer number (281409961).

Almost surely, 2^562819921 is an apocalyptic number.

It is an amenable number.

562819921 is a deficient number, since it is larger than the sum of its proper divisors (1).

562819921 is an equidigital number, since it uses as much as digits as its factorization.

562819921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 43.

The square root of 562819921 is about 23723.8260194261. The cubic root of 562819921 is about 825.6382797294.

The spelling of 562819921 in words is "five hundred sixty-two million, eight hundred nineteen thousand, nine hundred twenty-one".