562981021 has 2 divisors, whose sum is σ = 562981022. Its totient is φ = 562981020.

The previous prime is 562980961. The next prime is 562981057. The reversal of 562981021 is 120189265.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 487968100 + 75012921 = 22090^2 + 8661^2 .

It is a cyclic number.

It is not a de Polignac number, because 562981021 - 2¹¹ = 562978973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (562981121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281490510 + 281490511.

It is an arithmetic number, because the mean of its divisors is an integer number (281490511).

Almost surely, 2^562981021 is an apocalyptic number.

It is an amenable number.

562981021 is a deficient number, since it is larger than the sum of its proper divisors (1).

562981021 is an equidigital number, since it uses as much as digits as its factorization.

562981021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 562981021 is about 23727.2210972967. The cubic root of 562981021 is about 825.7170483450.

The spelling of 562981021 in words is "five hundred sixty-two million, nine hundred eighty-one thousand, twenty-one".