55147589 has 18 divisors (see below), whose sum is σ = 66701970. Its totient is φ = 45407712.

The previous prime is 55147571. The next prime is 55147601. The reversal of 55147589 is 98574155.

55147589 is nontrivially palindromic in base 6.

55147589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 41383489 + 13764100 = 6433^2 + 3710^2 .

It is not a de Polignac number, because 55147589 - 2¹² = 55143493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55147529) 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 in 17 ways as a sum of consecutive naturals, for example, 279839 + ... + 280035.

It is an arithmetic number, because the mean of its divisors is an integer number (3705665).

Almost surely, 2^55147589 is an apocalyptic number.

It is an amenable number.

55147589 is a deficient number, since it is larger than the sum of its proper divisors (11554381).

55147589 is an equidigital number, since it uses as much as digits as its factorization.

55147589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 233 counting only the distinct ones).

The product of its digits is 252000, while the sum is 44.

The square root of 55147589 is about 7426.1422690385. The cubic root of 55147589 is about 380.6351082884.

The spelling of 55147589 in words is "fifty-five million, one hundred forty-seven thousand, five hundred eighty-nine".