565481040552385 has 4 divisors (see below), whose sum is σ = 678577248662868. Its totient is φ = 452384832441904.

The previous prime is 565481040552361. The next prime is 565481040552401. The reversal of 565481040552385 is 583255040184565.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 255846199107249 + 309634841445136 = 15995193^2 + 17596444^2 .

It is a cyclic number.

It is not a de Polignac number, because 565481040552385 - 2²¹ = 565481038455233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 56548104055234 + ... + 56548104055243.

It is an arithmetic number, because the mean of its divisors is an integer number (169644312165717).

Almost surely, 2^{565481040552385} is an apocalyptic number.

It is an amenable number.

565481040552385 is a deficient number, since it is larger than the sum of its proper divisors (113096208110483).

565481040552385 is a wasteful number, since it uses less digits than its factorization.

565481040552385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113096208110482.

The product of its (nonzero) digits is 115200000, while the sum is 61.

The spelling of 565481040552385 in words is "five hundred sixty-five trillion, four hundred eighty-one billion, forty million, five hundred fifty-two thousand, three hundred eighty-five".