55127939 has 2 divisors, whose sum is σ = 55127940. Its totient is φ = 55127938.

The previous prime is 55127909. The next prime is 55127959. The reversal of 55127939 is 93972155.

55127939 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 a de Polignac number, because none of the positive numbers 2^k-55127939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55127896 and 55127905.

It is not a weakly prime, because it can be changed into another prime (55127909) 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, 27563969 + 27563970.

It is an arithmetic number, because the mean of its divisors is an integer number (27563970).

Almost surely, 2^55127939 is an apocalyptic number.

55127939 is a deficient number, since it is larger than the sum of its proper divisors (1).

55127939 is an equidigital number, since it uses as much as digits as its factorization.

55127939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85050, while the sum is 41.

The square root of 55127939 is about 7424.8191223760. The cubic root of 55127939 is about 380.5898940518.

The spelling of 55127939 in words is "fifty-five million, one hundred twenty-seven thousand, nine hundred thirty-nine".