565416421 has 8 divisors (see below), whose sum is σ = 595516320. Its totient is φ = 535350672.

The previous prime is 565416403. The next prime is 565416427. The reversal of 565416421 is 124614565.

565416421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 565416421 - 2²¹ = 563319269 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 (565416427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29946 + ... + 45028.

It is an arithmetic number, because the mean of its divisors is an integer number (74439540).

Almost surely, 2^565416421 is an apocalyptic number.

It is an amenable number.

565416421 is a deficient number, since it is larger than the sum of its proper divisors (30099899).

565416421 is a wasteful number, since it uses less digits than its factorization.

565416421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17075.

The product of its digits is 28800, while the sum is 34.

The square root of 565416421 is about 23778.4865161768. The cubic root of 565416421 is about 826.9059922278.

The spelling of 565416421 in words is "five hundred sixty-five million, four hundred sixteen thousand, four hundred twenty-one".