55145134223 has 2 divisors, whose sum is σ = 55145134224. Its totient is φ = 55145134222.

The previous prime is 55145134199. The next prime is 55145134249. The reversal of 55145134223 is 32243154155.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55145134223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55145134273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27572567111 + 27572567112.

It is an arithmetic number, because the mean of its divisors is an integer number (27572567112).

Almost surely, 2^55145134223 is an apocalyptic number.

55145134223 is a deficient number, since it is larger than the sum of its proper divisors (1).

55145134223 is an equidigital number, since it uses as much as digits as its factorization.

55145134223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 35.

Adding to 55145134223 its reverse (32243154155), we get a palindrome (87388288378).

The spelling of 55145134223 in words is "fifty-five billion, one hundred forty-five million, one hundred thirty-four thousand, two hundred twenty-three".