561733345 has 4 divisors (see below), whose sum is σ = 674080020. Its totient is φ = 449386672.

The previous prime is 561733307. The next prime is 561733357. The reversal of 561733345 is 543337165.

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 299843856 + 261889489 = 17316^2 + 16183^2 .

It is a cyclic number.

It is not a de Polignac number, because 561733345 - 2¹¹ = 561731297 is a prime.

It is an unprimeable number.

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, 56173330 + ... + 56173339.

It is an arithmetic number, because the mean of its divisors is an integer number (168520005).

Almost surely, 2^561733345 is an apocalyptic number.

It is an amenable number.

561733345 is a deficient number, since it is larger than the sum of its proper divisors (112346675).

561733345 is a wasteful number, since it uses less digits than its factorization.

561733345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112346674.

The product of its digits is 113400, while the sum is 37.

The square root of 561733345 is about 23700.9144338357. The cubic root of 561733345 is about 825.1066137088.

The spelling of 561733345 in words is "five hundred sixty-one million, seven hundred thirty-three thousand, three hundred forty-five".