567664081 has 6 divisors (see below), whose sum is σ = 593418770. Its totient is φ = 542982528.

The previous prime is 567664057. The next prime is 567664091. The reversal of 567664081 is 180466765.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 355699600 + 211964481 = 18860^2 + 14559^2 .

It is not a de Polignac number, because 567664081 - 2¹⁵ = 567631313 is a prime.

It is a super-2 number, since 2×567664081² = 644485017715149122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (567664091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 536016 + ... + 537073.

Almost surely, 2^567664081 is an apocalyptic number.

It is an amenable number.

567664081 is a deficient number, since it is larger than the sum of its proper divisors (25754689).

567664081 is a wasteful number, since it uses less digits than its factorization.

567664081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073135 (or 1073112 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 567664081 is about 23825.7021092769. The cubic root of 567664081 is about 828.0002572016. Note that the first 3 decimals are identical.

The spelling of 567664081 in words is "five hundred sixty-seven million, six hundred sixty-four thousand, eighty-one".