55667239 has 2 divisors, whose sum is σ = 55667240. Its totient is φ = 55667238.

The previous prime is 55667219. The next prime is 55667243. The reversal of 55667239 is 93276655.

55667239 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 55667239 - 2⁹ = 55666727 is a prime.

It is a super-3 number, since 3×55667239³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55667195 and 55667204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55667219) 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, 27833619 + 27833620.

It is an arithmetic number, because the mean of its divisors is an integer number (27833620).

Almost surely, 2^55667239 is an apocalyptic number.

55667239 is a deficient number, since it is larger than the sum of its proper divisors (1).

55667239 is an equidigital number, since it uses as much as digits as its factorization.

55667239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 43.

The square root of 55667239 is about 7461.0481167193. The cubic root of 55667239 is about 381.8269342957.

The spelling of 55667239 in words is "fifty-five million, six hundred sixty-seven thousand, two hundred thirty-nine".