55241505689 has 2 divisors, whose sum is σ = 55241505690. Its totient is φ = 55241505688.

The previous prime is 55241505617. The next prime is 55241505691. The reversal of 55241505689 is 98650514255.

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., 51386089225 + 3855416464 = 226685^2 + 62092^2 .

It is a cyclic number.

It is not a de Polignac number, because 55241505689 - 2¹² = 55241501593 is a prime.

Together with 55241505691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55241508689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27620752844 + 27620752845.

It is an arithmetic number, because the mean of its divisors is an integer number (27620752845).

Almost surely, 2^55241505689 is an apocalyptic number.

It is an amenable number.

55241505689 is a deficient number, since it is larger than the sum of its proper divisors (1).

55241505689 is an equidigital number, since it uses as much as digits as its factorization.

55241505689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160000, while the sum is 50.

The spelling of 55241505689 in words is "fifty-five billion, two hundred forty-one million, five hundred five thousand, six hundred eighty-nine".