55053839 has 2 divisors, whose sum is σ = 55053840. Its totient is φ = 55053838.

The previous prime is 55053827. The next prime is 55053841. The reversal of 55053839 is 93835055.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55053839 is a prime.

Together with 55053841, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55053139) 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 as a sum of consecutive naturals, namely, 27526919 + 27526920.

It is an arithmetic number, because the mean of its divisors is an integer number (27526920).

Almost surely, 2^55053839 is an apocalyptic number.

55053839 is a deficient number, since it is larger than the sum of its proper divisors (1).

55053839 is an equidigital number, since it uses as much as digits as its factorization.

55053839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 55053839 is about 7419.8274238691. The cubic root of 55053839 is about 380.4192947946.

The spelling of 55053839 in words is "fifty-five million, fifty-three thousand, eight hundred thirty-nine".