55322123 has 4 divisors (see below), whose sum is σ = 56608728. Its totient is φ = 54035520.

The previous prime is 55322087. The next prime is 55322143. The reversal of 55322123 is 32122355.

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

It is not a de Polignac number, because 55322123 - 2¹⁰ = 55321099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55322143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643238 + ... + 643323.

It is an arithmetic number, because the mean of its divisors is an integer number (14152182).

Almost surely, 2^55322123 is an apocalyptic number.

55322123 is a deficient number, since it is larger than the sum of its proper divisors (1286605).

55322123 is a wasteful number, since it uses less digits than its factorization.

55322123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286604.

The product of its digits is 1800, while the sum is 23.

The square root of 55322123 is about 7437.8843093987. The cubic root of 55322123 is about 381.0362367741.

Adding to 55322123 its reverse (32122355), we get a palindrome (87444478).

The spelling of 55322123 in words is "fifty-five million, three hundred twenty-two thousand, one hundred twenty-three".