565345447 has 4 divisors (see below), whose sum is σ = 565393696. Its totient is φ = 565297200.

The previous prime is 565345427. The next prime is 565345457. The reversal of 565345447 is 744543565.

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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-565345447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565345427) 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, 5947 + ... + 34147.

It is an arithmetic number, because the mean of its divisors is an integer number (141348424).

Almost surely, 2^565345447 is an apocalyptic number.

565345447 is a deficient number, since it is larger than the sum of its proper divisors (48249).

565345447 is a wasteful number, since it uses less digits than its factorization.

565345447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48248.

The product of its digits is 1008000, while the sum is 43.

The square root of 565345447 is about 23776.9940698987. The cubic root of 565345447 is about 826.8713916045.

The spelling of 565345447 in words is "five hundred sixty-five million, three hundred forty-five thousand, four hundred forty-seven".