55394744749291 has 2 divisors, whose sum is σ = 55394744749292. Its totient is φ = 55394744749290.

The previous prime is 55394744749277. The next prime is 55394744749343. The reversal of 55394744749291 is 19294744749355.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55394744749291 - 2⁴⁵ = 20210372660459 is a prime.

It is not a weakly prime, because it can be changed into another prime (55394744719291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27697372374645 + 27697372374646.

It is an arithmetic number, because the mean of its divisors is an integer number (27697372374646).

Almost surely, 2^{55394744749291} is an apocalyptic number.

55394744749291 is a deficient number, since it is larger than the sum of its proper divisors (1).

55394744749291 is an equidigital number, since it uses as much as digits as its factorization.

55394744749291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1371686400, while the sum is 73.

The spelling of 55394744749291 in words is "fifty-five trillion, three hundred ninety-four billion, seven hundred forty-four million, seven hundred forty-nine thousand, two hundred ninety-one".