565709057 has 4 divisors (see below), whose sum is σ = 565767636. Its totient is φ = 565650480.

The previous prime is 565709033. The next prime is 565709069. The reversal of 565709057 is 750907565.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 387459856 + 178249201 = 19684^2 + 13351^2 .

It is a cyclic number.

It is not a de Polignac number, because 565709057 - 2¹² = 565704961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 565708999 and 565709017.

It is not an unprimeable number, because it can be changed into a prime (565703057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10994 + ... + 35387.

It is an arithmetic number, because the mean of its divisors is an integer number (141441909).

Almost surely, 2^565709057 is an apocalyptic number.

It is an amenable number.

565709057 is a deficient number, since it is larger than the sum of its proper divisors (58579).

565709057 is a wasteful number, since it uses less digits than its factorization.

565709057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58578.

The product of its (nonzero) digits is 330750, while the sum is 44.

The square root of 565709057 is about 23784.6390975352. The cubic root of 565709057 is about 827.0486249956.

The spelling of 565709057 in words is "five hundred sixty-five million, seven hundred nine thousand, fifty-seven".