561733 has 2 divisors, whose sum is σ = 561734. Its totient is φ = 561732.

The previous prime is 561713. The next prime is 561761. The reversal of 561733 is 337165.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487204 + 74529 = 698^2 + 273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 561698 and 561707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280866 + 280867.

It is an arithmetic number, because the mean of its divisors is an integer number (280867).

2⁵⁶¹⁷³³ is an apocalyptic number.

It is an amenable number.

561733 is a deficient number, since it is larger than the sum of its proper divisors (1).

561733 is an equidigital number, since it uses as much as digits as its factorization.

561733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1890, while the sum is 25.

The square root of 561733 is about 749.4884922399. The cubic root of 561733 is about 82.5106444790.

Adding to 561733 its reverse (337165), we get a palindrome (898898).

The spelling of 561733 in words is "five hundred sixty-one thousand, seven hundred thirty-three".