565438965 has 32 divisors (see below), whose sum is σ = 1113482496. Its totient is φ = 238602240.

The previous prime is 565438963. The next prime is 565438967. The reversal of 565438965 is 569834565.

It is an interprime number because it is at equal distance from previous prime (565438963) and next prime (565438967).

It is not a de Polignac number, because 565438965 - 2¹ = 565438963 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565438963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205756 + ... + 208485.

It is an arithmetic number, because the mean of its divisors is an integer number (34796328).

Almost surely, 2^565438965 is an apocalyptic number.

It is an amenable number.

565438965 is a deficient number, since it is larger than the sum of its proper divisors (548043531).

565438965 is a wasteful number, since it uses less digits than its factorization.

565438965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414269.

The product of its digits is 3888000, while the sum is 51.

The square root of 565438965 is about 23778.9605533968. The cubic root of 565438965 is about 826.9169820754.

The spelling of 565438965 in words is "five hundred sixty-five million, four hundred thirty-eight thousand, nine hundred sixty-five".