55289123 has 4 divisors (see below), whose sum is σ = 56332368. Its totient is φ = 54245880.

The previous prime is 55289081. The next prime is 55289131. The reversal of 55289123 is 32198255.

55289123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55289123 - 2⁸ = 55288867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55289153) 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 3 ways as a sum of consecutive naturals, for example, 521543 + ... + 521648.

It is an arithmetic number, because the mean of its divisors is an integer number (14083092).

Almost surely, 2^55289123 is an apocalyptic number.

55289123 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

55289123 is a deficient number, since it is larger than the sum of its proper divisors (1043245).

55289123 is a wasteful number, since it uses less digits than its factorization.

55289123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043244.

The product of its digits is 21600, while the sum is 35.

The square root of 55289123 is about 7435.6656057141. The cubic root of 55289123 is about 380.9604581876.

The spelling of 55289123 in words is "fifty-five million, two hundred eighty-nine thousand, one hundred twenty-three".