2259569 has 8 divisors (see below), whose sum is σ = 2467752. Its totient is φ = 2056320.

The previous prime is 2259557. The next prime is 2259571. The reversal of 2259569 is 9659522.

2259569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 48400 + 2211169 = 220^2 + 1487^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2259569 is a prime.

It is a super-2 number, since 2×2259569² = 10211304131522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2259529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242 + ... + 2139.

It is an arithmetic number, because the mean of its divisors is an integer number (308469).

2^2259569 is an apocalyptic number.

It is an amenable number.

2259569 is a deficient number, since it is larger than the sum of its proper divisors (208183).

2259569 is a wasteful number, since it uses less digits than its factorization.

2259569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467.

The product of its digits is 48600, while the sum is 38.

The square root of 2259569 is about 1503.1862825345. The cubic root of 2259569 is about 131.2225690217. Note that the first 3 decimals are identical.

The spelling of 2259569 in words is "two million, two hundred fifty-nine thousand, five hundred sixty-nine".