55268289 has 24 divisors (see below), whose sum is σ = 81393312. Its totient is φ = 36132480.

The previous prime is 55268281. The next prime is 55268293. The reversal of 55268289 is 98286255.

55268289 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 55268289 - 2³ = 55268281 is a prime.

55268289 is a modest number, since divided by 8289 gives 5526 as remainder.

It is not an unprimeable number, because it can be changed into a prime (55268281) 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 23 ways as a sum of consecutive naturals, for example, 179874 + ... + 180180.

It is an arithmetic number, because the mean of its divisors is an integer number (3391388).

Almost surely, 2^55268289 is an apocalyptic number.

It is an amenable number.

55268289 is a deficient number, since it is larger than the sum of its proper divisors (26125023).

55268289 is a wasteful number, since it uses less digits than its factorization.

55268289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 634 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 55268289 is about 7434.2645231388. The cubic root of 55268289 is about 380.9126011114.

The spelling of 55268289 in words is "fifty-five million, two hundred sixty-eight thousand, two hundred eighty-nine".