566307481 has 2 divisors, whose sum is σ = 566307482. Its totient is φ = 566307480.

The previous prime is 566307479. The next prime is 566307487. The reversal of 566307481 is 184703665.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366339600 + 199967881 = 19140^2 + 14141^2 .

It is a cyclic number.

It is not a de Polignac number, because 566307481 - 2¹ = 566307479 is a prime.

It is a super-2 number, since 2×566307481² = 641408326073130722, which contains 22 as substring.

Together with 566307479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (566307487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283153740 + 283153741.

It is an arithmetic number, because the mean of its divisors is an integer number (283153741).

Almost surely, 2^566307481 is an apocalyptic number.

It is an amenable number.

566307481 is a deficient number, since it is larger than the sum of its proper divisors (1).

566307481 is an equidigital number, since it uses as much as digits as its factorization.

566307481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 566307481 is about 23797.2158245455. The cubic root of 566307481 is about 827.3401478358.

The spelling of 566307481 in words is "five hundred sixty-six million, three hundred seven thousand, four hundred eighty-one".