561005433 has 20 divisors (see below), whose sum is σ = 860699620. Its totient is φ = 363893472.

The previous prime is 561005363. The next prime is 561005437. The reversal of 561005433 is 334500165.

561005433 is a `hidden beast` number, since 5 + 610 + 0 + 5 + 43 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 258662889 + 302342544 = 16083^2 + 17388^2 .

It is not a de Polignac number, because 561005433 - 2⁸ = 561005177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561005397 and 561005406.

It is not an unprimeable number, because it can be changed into a prime (561005437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 90598 + ... + 96591.

It is an arithmetic number, because the mean of its divisors is an integer number (43034981).

Almost surely, 2^561005433 is an apocalyptic number.

It is an amenable number.

561005433 is a deficient number, since it is larger than the sum of its proper divisors (299694187).

561005433 is a wasteful number, since it uses less digits than its factorization.

561005433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187238 (or 187229 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 561005433 is about 23685.5532550962. The cubic root of 561005433 is about 824.7500598235.

Adding to 561005433 its reverse (334500165), we get a palindrome (895505598).

The spelling of 561005433 in words is "five hundred sixty-one million, five thousand, four hundred thirty-three".