566820481 has 2 divisors, whose sum is σ = 566820482. Its totient is φ = 566820480.

The previous prime is 566820473. The next prime is 566820491. The reversal of 566820481 is 184028665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397404225 + 169416256 = 19935^2 + 13016^2 .

It is a cyclic number.

It is not a de Polignac number, because 566820481 - 2³ = 566820473 is a prime.

It is a super-3 number, since 3×566820481³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (566820451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283410240 + 283410241.

It is an arithmetic number, because the mean of its divisors is an integer number (283410241).

Almost surely, 2^566820481 is an apocalyptic number.

It is an amenable number.

566820481 is a deficient number, since it is larger than the sum of its proper divisors (1).

566820481 is an equidigital number, since it uses as much as digits as its factorization.

566820481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 566820481 is about 23807.9919564839. The cubic root of 566820481 is about 827.5898928458.

The spelling of 566820481 in words is "five hundred sixty-six million, eight hundred twenty thousand, four hundred eighty-one".