55839107 has 2 divisors, whose sum is σ = 55839108. Its totient is φ = 55839106.

The previous prime is 55839079. The next prime is 55839109. The reversal of 55839107 is 70193855.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55839107 is a prime.

Together with 55839109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55839109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27919553 + 27919554.

It is an arithmetic number, because the mean of its divisors is an integer number (27919554).

Almost surely, 2^55839107 is an apocalyptic number.

55839107 is a deficient number, since it is larger than the sum of its proper divisors (1).

55839107 is an equidigital number, since it uses as much as digits as its factorization.

55839107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 55839107 is about 7472.5569251763. The cubic root of 55839107 is about 382.2194836196.

The spelling of 55839107 in words is "fifty-five million, eight hundred thirty-nine thousand, one hundred seven".