55589709 has 12 divisors (see below), whose sum is σ = 84760224. Its totient is φ = 31746024.

The previous prime is 55589701. The next prime is 55589713. The reversal of 55589709 is 90798555.

55589709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55589709 - 2³ = 55589701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55589701) 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 11 ways as a sum of consecutive naturals, for example, 33354 + ... + 34980.

It is an arithmetic number, because the mean of its divisors is an integer number (7063352).

Almost surely, 2^55589709 is an apocalyptic number.

It is an amenable number.

55589709 is a deficient number, since it is larger than the sum of its proper divisors (29170515).

55589709 is an frugal number, since it uses more digits than its factorization.

55589709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3264 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 48.

The square root of 55589709 is about 7455.8506556932. The cubic root of 55589709 is about 381.6495900354.

The spelling of 55589709 in words is "fifty-five million, five hundred eighty-nine thousand, seven hundred nine".