610433561 has 2 divisors, whose sum is σ = 610433562. Its totient is φ = 610433560.

The previous prime is 610433491. The next prime is 610433573. The reversal of 610433561 is 165334016.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 569729161 + 40704400 = 23869^2 + 6380^2 .

It is a cyclic number.

It is not a de Polignac number, because 610433561 - 2¹⁸ = 610171417 is a prime.

It is not a weakly prime, because it can be changed into another prime (610433261) 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, 305216780 + 305216781.

It is an arithmetic number, because the mean of its divisors is an integer number (305216781).

Almost surely, 2^610433561 is an apocalyptic number.

It is an amenable number.

610433561 is a deficient number, since it is larger than the sum of its proper divisors (1).

610433561 is an equidigital number, since it uses as much as digits as its factorization.

610433561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 610433561 is about 24706.9536972894. The cubic root of 610433561 is about 848.2934901598.

Adding to 610433561 its reverse (165334016), we get a palindrome (775767577).

The spelling of 610433561 in words is "six hundred ten million, four hundred thirty-three thousand, five hundred sixty-one".