55388676589 has 2 divisors, whose sum is σ = 55388676590. Its totient is φ = 55388676588.

The previous prime is 55388676559. The next prime is 55388676601. The reversal of 55388676589 is 98567688355.

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., 34431771364 + 20956905225 = 185558^2 + 144765^2 .

It is a cyclic number.

It is not a de Polignac number, because 55388676589 - 2⁷ = 55388676461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55388676529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27694338294 + 27694338295.

It is an arithmetic number, because the mean of its divisors is an integer number (27694338295).

Almost surely, 2^55388676589 is an apocalyptic number.

It is an amenable number.

55388676589 is a deficient number, since it is larger than the sum of its proper divisors (1).

55388676589 is an equidigital number, since it uses as much as digits as its factorization.

55388676589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456000, while the sum is 70.

The spelling of 55388676589 in words is "fifty-five billion, three hundred eighty-eight million, six hundred seventy-six thousand, five hundred eighty-nine".