55128214063399 has 2 divisors, whose sum is σ = 55128214063400. Its totient is φ = 55128214063398.

The previous prime is 55128214063393. The next prime is 55128214063493. The reversal of 55128214063399 is 99336041282155.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55128214063399 - 2²³ = 55128205674791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55128214063393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27564107031699 + 27564107031700.

It is an arithmetic number, because the mean of its divisors is an integer number (27564107031700).

Almost surely, 2^{55128214063399} is an apocalyptic number.

55128214063399 is a deficient number, since it is larger than the sum of its proper divisors (1).

55128214063399 is an equidigital number, since it uses as much as digits as its factorization.

55128214063399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13996800, while the sum is 58.

The spelling of 55128214063399 in words is "fifty-five trillion, one hundred twenty-eight billion, two hundred fourteen million, sixty-three thousand, three hundred ninety-nine".