561172283 has 8 divisors (see below), whose sum is σ = 641564640. Its totient is φ = 480836160.

The previous prime is 561172259. The next prime is 561172291. The reversal of 561172283 is 382271165.

It is a happy number.

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

It is not a de Polignac number, because 561172283 - 2¹⁶ = 561106747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561172583) 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 7 ways as a sum of consecutive naturals, for example, 10103 + ... + 34991.

It is an arithmetic number, because the mean of its divisors is an integer number (80195580).

Almost surely, 2^561172283 is an apocalyptic number.

561172283 is a deficient number, since it is larger than the sum of its proper divisors (80392357).

561172283 is a wasteful number, since it uses less digits than its factorization.

561172283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28117.

The product of its digits is 20160, while the sum is 35.

The square root of 561172283 is about 23689.0751824549. The cubic root of 561172283 is about 824.8318153642.

The spelling of 561172283 in words is "five hundred sixty-one million, one hundred seventy-two thousand, two hundred eighty-three".