55629589 has 2 divisors, whose sum is σ = 55629590. Its totient is φ = 55629588.

The previous prime is 55629557. The next prime is 55629599. The reversal of 55629589 is 98592655.

55629589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29517489 + 26112100 = 5433^2 + 5110^2 .

It is a cyclic number.

It is not a de Polignac number, because 55629589 - 2⁵ = 55629557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55629599) 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, 27814794 + 27814795.

It is an arithmetic number, because the mean of its divisors is an integer number (27814795).

Almost surely, 2^55629589 is an apocalyptic number.

It is an amenable number.

55629589 is a deficient number, since it is larger than the sum of its proper divisors (1).

55629589 is an equidigital number, since it uses as much as digits as its factorization.

55629589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972000, while the sum is 49.

The square root of 55629589 is about 7458.5245860022. The cubic root of 55629589 is about 381.7408332272.

It can be divided in two parts, 5562 and 9589, that added together give a palindrome (15151).

The spelling of 55629589 in words is "fifty-five million, six hundred twenty-nine thousand, five hundred eighty-nine".