5669459561 has 4 divisors (see below), whose sum is σ = 5700782724. Its totient is φ = 5638136400.

The previous prime is 5669459491. The next prime is 5669459633. The reversal of 5669459561 is 1659549665.

It is a happy number.

5669459561 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 1659549665 = 5 ⋅331909933.

It can be written as a sum of positive squares in 2 ways, for example, as 1010031961 + 4659427600 = 31781^2 + 68260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5669459561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5669459497 and 5669459506.

It is not an unprimeable number, because it can be changed into a prime (5669459161) by changing a digit.

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, 15661310 + ... + 15661671.

It is an arithmetic number, because the mean of its divisors is an integer number (1425195681).

Almost surely, 2^5669459561 is an apocalyptic number.

It is an amenable number.

5669459561 is a deficient number, since it is larger than the sum of its proper divisors (31323163).

5669459561 is a wasteful number, since it uses less digits than its factorization.

5669459561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31323162.

The product of its digits is 8748000, while the sum is 56.

The square root of 5669459561 is about 75295.8137016926. The cubic root of 5669459561 is about 1783.1199292275.

The spelling of 5669459561 in words is "five billion, six hundred sixty-nine million, four hundred fifty-nine thousand, five hundred sixty-one".