55223201239 has 2 divisors, whose sum is σ = 55223201240. Its totient is φ = 55223201238.

The previous prime is 55223201237. The next prime is 55223201279. The reversal of 55223201239 is 93210232255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55223201239 - 2¹ = 55223201237 is a prime.

It is a super-2 number, since 2×55223201239² (a number of 22 digits) contains 22 as substring.

Together with 55223201237, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55223201233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27611600619 + 27611600620.

It is an arithmetic number, because the mean of its divisors is an integer number (27611600620).

Almost surely, 2^55223201239 is an apocalyptic number.

55223201239 is a deficient number, since it is larger than the sum of its proper divisors (1).

55223201239 is an equidigital number, since it uses as much as digits as its factorization.

55223201239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 55223201239 in words is "fifty-five billion, two hundred twenty-three million, two hundred one thousand, two hundred thirty-nine".