55888489 has 2 divisors, whose sum is σ = 55888490. Its totient is φ = 55888488.

The previous prime is 55888487. The next prime is 55888493. The reversal of 55888489 is 98488855.

55888489 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., 54878464 + 1010025 = 7408^2 + 1005^2 .

It is a cyclic number.

It is not a de Polignac number, because 55888489 - 2¹ = 55888487 is a prime.

Together with 55888487, 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 (55888487) 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, 27944244 + 27944245.

It is an arithmetic number, because the mean of its divisors is an integer number (27944245).

Almost surely, 2^55888489 is an apocalyptic number.

It is an amenable number.

55888489 is a deficient number, since it is larger than the sum of its proper divisors (1).

55888489 is an equidigital number, since it uses as much as digits as its factorization.

55888489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3686400, while the sum is 55.

The square root of 55888489 is about 7475.8604187077. The cubic root of 55888489 is about 382.3321239192.

The spelling of 55888489 in words is "fifty-five million, eight hundred eighty-eight thousand, four hundred eighty-nine".