562881961 has 2 divisors, whose sum is σ = 562881962. Its totient is φ = 562881960.

The previous prime is 562881959. The next prime is 562881983. The reversal of 562881961 is 169188265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315417600 + 247464361 = 17760^2 + 15731^2 .

It is a cyclic number.

It is not a de Polignac number, because 562881961 - 2¹ = 562881959 is a prime.

It is a super-2 number, since 2×562881961² = 633672204038411042, which contains 22 as substring.

Together with 562881959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (562881901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281440980 + 281440981.

It is an arithmetic number, because the mean of its divisors is an integer number (281440981).

Almost surely, 2^562881961 is an apocalyptic number.

It is an amenable number.

562881961 is a deficient number, since it is larger than the sum of its proper divisors (1).

562881961 is an equidigital number, since it uses as much as digits as its factorization.

562881961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 46.

The square root of 562881961 is about 23725.1335296558. The cubic root of 562881961 is about 825.6686154934.

The spelling of 562881961 in words is "five hundred sixty-two million, eight hundred eighty-one thousand, nine hundred sixty-one".