55628567 has 2 divisors, whose sum is σ = 55628568. Its totient is φ = 55628566.

The previous prime is 55628557. The next prime is 55628569. The reversal of 55628567 is 76582655.

55628567 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 not a de Polignac number, because 55628567 - 2¹⁶ = 55563031 is a prime.

Together with 55628569, 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 (55628569) 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, 27814283 + 27814284.

It is an arithmetic number, because the mean of its divisors is an integer number (27814284).

Almost surely, 2^55628567 is an apocalyptic number.

55628567 is a deficient number, since it is larger than the sum of its proper divisors (1).

55628567 is an equidigital number, since it uses as much as digits as its factorization.

55628567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 44.

The square root of 55628567 is about 7458.4560734779. The cubic root of 55628567 is about 381.7384954934.

The spelling of 55628567 in words is "fifty-five million, six hundred twenty-eight thousand, five hundred sixty-seven".