55050689 has 2 divisors, whose sum is σ = 55050690. Its totient is φ = 55050688.

The previous prime is 55050679. The next prime is 55050691. The reversal of 55050689 is 98605055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54878464 + 172225 = 7408^2 + 415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55050689 is a prime.

It is a Sophie Germain prime.

Together with 55050691, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (55050629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27525344 + 27525345.

It is an arithmetic number, because the mean of its divisors is an integer number (27525345).

Almost surely, 2^55050689 is an apocalyptic number.

It is an amenable number.

55050689 is a deficient number, since it is larger than the sum of its proper divisors (1).

55050689 is an equidigital number, since it uses as much as digits as its factorization.

55050689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 38.

The square root of 55050689 is about 7419.6151517447. The cubic root of 55050689 is about 380.4120392083.

The spelling of 55050689 in words is "fifty-five million, fifty thousand, six hundred eighty-nine".