564775965 has 24 divisors (see below), whose sum is σ = 1054249560. Its totient is φ = 278043264.

The previous prime is 564775963. The next prime is 564775987. The reversal of 564775965 is 569577465.

564775965 is a `hidden beast` number, since 5 + 6 + 47 + 7 + 596 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 23794884 + 540981081 = 4878^2 + 23259^2 .

It is not a de Polignac number, because 564775965 - 2¹ = 564775963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564775963) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 482130 + ... + 483299.

It is an arithmetic number, because the mean of its divisors is an integer number (43927065).

Almost surely, 2^564775965 is an apocalyptic number.

It is an amenable number.

564775965 is a deficient number, since it is larger than the sum of its proper divisors (489473595).

564775965 is a wasteful number, since it uses less digits than its factorization.

564775965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965453 (or 965450 counting only the distinct ones).

The product of its digits is 7938000, while the sum is 54.

The square root of 564775965 is about 23765.0155691091. The cubic root of 564775965 is about 826.5936578306.

The spelling of 564775965 in words is "five hundred sixty-four million, seven hundred seventy-five thousand, nine hundred sixty-five".