2055355455449 has 2 divisors, whose sum is σ = 2055355455450. Its totient is φ = 2055355455448.

The previous prime is 2055355455427. The next prime is 2055355455451. The reversal of 2055355455449 is 9445545535502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1653456513424 + 401898942025 = 1285868^2 + 633955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2055355455449 - 2²⁰ = 2055354406873 is a prime.

Together with 2055355455451, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2055355455394 and 2055355455403.

It is not a weakly prime, because it can be changed into another prime (2055355455149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027677727724 + 1027677727725.

It is an arithmetic number, because the mean of its divisors is an integer number (1027677727725).

Almost surely, 2^{2055355455449} is an apocalyptic number.

It is an amenable number.

2055355455449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2055355455449 is an equidigital number, since it uses as much as digits as its factorization.

2055355455449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000000, while the sum is 56.

The spelling of 2055355455449 in words is "two trillion, fifty-five billion, three hundred fifty-five million, four hundred fifty-five thousand, four hundred forty-nine".