55256234818219 has 2 divisors, whose sum is σ = 55256234818220. Its totient is φ = 55256234818218.

The previous prime is 55256234818177. The next prime is 55256234818241. The reversal of 55256234818219 is 91281843265255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55256234818219 - 2²³ = 55256226429611 is a prime.

It is a super-2 number, since 2×55256234818219² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55256234818259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27628117409109 + 27628117409110.

It is an arithmetic number, because the mean of its divisors is an integer number (27628117409110).

Almost surely, 2^{55256234818219} is an apocalyptic number.

55256234818219 is a deficient number, since it is larger than the sum of its proper divisors (1).

55256234818219 is an equidigital number, since it uses as much as digits as its factorization.

55256234818219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472000, while the sum is 61.

The spelling of 55256234818219 in words is "fifty-five trillion, two hundred fifty-six billion, two hundred thirty-four million, eight hundred eighteen thousand, two hundred nineteen".