565074989 has 4 divisors (see below), whose sum is σ = 580347324. Its totient is φ = 549802656.

The previous prime is 565074949. The next prime is 565075001. The reversal of 565074989 is 989470565.

565074989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 463670089 + 101404900 = 21533^2 + 10070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-565074989 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 565074989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565074929) 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, 7636112 + ... + 7636185.

It is an arithmetic number, because the mean of its divisors is an integer number (145086831).

Almost surely, 2^565074989 is an apocalyptic number.

It is an amenable number.

565074989 is a deficient number, since it is larger than the sum of its proper divisors (15272335).

565074989 is a wasteful number, since it uses less digits than its factorization.

565074989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15272334.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The square root of 565074989 is about 23771.3060011435. The cubic root of 565074989 is about 826.7395137381.

The spelling of 565074989 in words is "five hundred sixty-five million, seventy-four thousand, nine hundred eighty-nine".