561310753 has 2 divisors, whose sum is σ = 561310754. Its totient is φ = 561310752.

The previous prime is 561310751. The next prime is 561310781. The reversal of 561310753 is 357013165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283855104 + 277455649 = 16848^2 + 16657^2 .

It is a cyclic number.

It is not a de Polignac number, because 561310753 - 2¹ = 561310751 is a prime.

It is a super-3 number, since 3×561310753³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 561310751, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (561310751) 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 as a sum of consecutive naturals, namely, 280655376 + 280655377.

It is an arithmetic number, because the mean of its divisors is an integer number (280655377).

Almost surely, 2^561310753 is an apocalyptic number.

It is an amenable number.

561310753 is a deficient number, since it is larger than the sum of its proper divisors (1).

561310753 is an equidigital number, since it uses as much as digits as its factorization.

561310753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 561310753 is about 23691.9976574370. The cubic root of 561310753 is about 824.8996525638.

The spelling of 561310753 in words is "five hundred sixty-one million, three hundred ten thousand, seven hundred fifty-three".