55127239 has 2 divisors, whose sum is σ = 55127240. Its totient is φ = 55127238.

The previous prime is 55127203. The next prime is 55127249. The reversal of 55127239 is 93272155.

55127239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55127239 - 2⁹ = 55126727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55127249) 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 as a sum of consecutive naturals, namely, 27563619 + 27563620.

It is an arithmetic number, because the mean of its divisors is an integer number (27563620).

Almost surely, 2^55127239 is an apocalyptic number.

55127239 is a deficient number, since it is larger than the sum of its proper divisors (1).

55127239 is an equidigital number, since it uses as much as digits as its factorization.

55127239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 34.

The square root of 55127239 is about 7424.7719830309. The cubic root of 55127239 is about 380.5882831684.

The spelling of 55127239 in words is "fifty-five million, one hundred twenty-seven thousand, two hundred thirty-nine".