55616147 has 2 divisors, whose sum is σ = 55616148. Its totient is φ = 55616146.

The previous prime is 55616137. The next prime is 55616149. The reversal of 55616147 is 74161655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55616147 - 2⁶ = 55616083 is a prime.

Together with 55616149, 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 (55616149) 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, 27808073 + 27808074.

It is an arithmetic number, because the mean of its divisors is an integer number (27808074).

Almost surely, 2^55616147 is an apocalyptic number.

55616147 is a deficient number, since it is larger than the sum of its proper divisors (1).

55616147 is an equidigital number, since it uses as much as digits as its factorization.

55616147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 35.

The square root of 55616147 is about 7457.6234150029. The cubic root of 55616147 is about 381.7100835625.

The spelling of 55616147 in words is "fifty-five million, six hundred sixteen thousand, one hundred forty-seven".