555433561 has 2 divisors, whose sum is σ = 555433562. Its totient is φ = 555433560.

The previous prime is 555433559. The next prime is 555433573. The reversal of 555433561 is 165334555.

555433561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341103961 + 214329600 = 18469^2 + 14640^2 .

It is a cyclic number.

It is not a de Polignac number, because 555433561 - 2¹ = 555433559 is a prime.

Together with 555433559, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 555433561.

It is not a weakly prime, because it can be changed into another prime (555433591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277716780 + 277716781.

It is an arithmetic number, because the mean of its divisors is an integer number (277716781).

Almost surely, 2^555433561 is an apocalyptic number.

It is an amenable number.

555433561 is a deficient number, since it is larger than the sum of its proper divisors (1).

555433561 is an equidigital number, since it uses as much as digits as its factorization.

555433561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 135000, while the sum is 37.

The square root of 555433561 is about 23567.6380021418. The cubic root of 555433561 is about 822.0105141493.

The spelling of 555433561 in words is "five hundred fifty-five million, four hundred thirty-three thousand, five hundred sixty-one".