55558667 has 2 divisors, whose sum is σ = 55558668. Its totient is φ = 55558666.

The previous prime is 55558661. The next prime is 55558691. The reversal of 55558667 is 76685555.

55558667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55558667 - 2⁴ = 55558651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55558661) 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, 27779333 + 27779334.

It is an arithmetic number, because the mean of its divisors is an integer number (27779334).

Almost surely, 2^55558667 is an apocalyptic number.

55558667 is a deficient number, since it is larger than the sum of its proper divisors (1).

55558667 is an equidigital number, since it uses as much as digits as its factorization.

55558667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260000, while the sum is 47.

The square root of 55558667 is about 7453.7686441155. The cubic root of 55558667 is about 381.5785374810.

The spelling of 55558667 in words is "fifty-five million, five hundred fifty-eight thousand, six hundred sixty-seven".