55499684243 has 2 divisors, whose sum is σ = 55499684244. Its totient is φ = 55499684242.

The previous prime is 55499684197. The next prime is 55499684249. The reversal of 55499684243 is 34248699455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55499684243 - 2³⁰ = 54425942419 is a prime.

It is not a weakly prime, because it can be changed into another prime (55499684249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27749842121 + 27749842122.

It is an arithmetic number, because the mean of its divisors is an integer number (27749842122).

Almost surely, 2^55499684243 is an apocalyptic number.

55499684243 is a deficient number, since it is larger than the sum of its proper divisors (1).

55499684243 is an equidigital number, since it uses as much as digits as its factorization.

55499684243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37324800, while the sum is 59.

The spelling of 55499684243 in words is "fifty-five billion, four hundred ninety-nine million, six hundred eighty-four thousand, two hundred forty-three".