55454331361111 has 2 divisors, whose sum is σ = 55454331361112. Its totient is φ = 55454331361110.

The previous prime is 55454331361097. The next prime is 55454331361147. The reversal of 55454331361111 is 11116313345455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55454331361111 - 2²⁷ = 55454197143383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55454331361511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27727165680555 + 27727165680556.

It is an arithmetic number, because the mean of its divisors is an integer number (27727165680556).

Almost surely, 2^{55454331361111} is an apocalyptic number.

55454331361111 is a deficient number, since it is larger than the sum of its proper divisors (1).

55454331361111 is an equidigital number, since it uses as much as digits as its factorization.

55454331361111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324000, while the sum is 43.

The spelling of 55454331361111 in words is "fifty-five trillion, four hundred fifty-four billion, three hundred thirty-one million, three hundred sixty-one thousand, one hundred eleven".