561848233 has 4 divisors (see below), whose sum is σ = 581222340. Its totient is φ = 542474128.

The previous prime is 561848201. The next prime is 561848263. The reversal of 561848233 is 332848165.

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 325549849 + 236298384 = 18043^2 + 15372^2 .

It is a cyclic number.

It is not a de Polignac number, because 561848233 - 2⁵ = 561848201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561848263) 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, 9687010 + ... + 9687067.

It is an arithmetic number, because the mean of its divisors is an integer number (145305585).

Almost surely, 2^561848233 is an apocalyptic number.

It is an amenable number.

561848233 is a deficient number, since it is larger than the sum of its proper divisors (19374107).

561848233 is a wasteful number, since it uses less digits than its factorization.

561848233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19374106.

The product of its digits is 138240, while the sum is 40.

The square root of 561848233 is about 23703.3380138748. The cubic root of 561848233 is about 825.1628612669.

The spelling of 561848233 in words is "five hundred sixty-one million, eight hundred forty-eight thousand, two hundred thirty-three".