55628113 has 2 divisors, whose sum is σ = 55628114. Its totient is φ = 55628112.

The previous prime is 55628077. The next prime is 55628129. The reversal of 55628113 is 31182655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55175184 + 452929 = 7428^2 + 673^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55628113 is a prime.

It is not a weakly prime, because it can be changed into another prime (55625113) 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, 27814056 + 27814057.

It is an arithmetic number, because the mean of its divisors is an integer number (27814057).

Almost surely, 2^55628113 is an apocalyptic number.

It is an amenable number.

55628113 is a deficient number, since it is larger than the sum of its proper divisors (1).

55628113 is an equidigital number, since it uses as much as digits as its factorization.

55628113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 31.

The square root of 55628113 is about 7458.4256381625. The cubic root of 55628113 is about 381.7374569997.

The spelling of 55628113 in words is "fifty-five million, six hundred twenty-eight thousand, one hundred thirteen".