55499684291 has 2 divisors, whose sum is σ = 55499684292. Its totient is φ = 55499684290.

The previous prime is 55499684257. The next prime is 55499684297. The reversal of 55499684291 is 19248699455.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55499684291 is a prime.

It is not a weakly prime, because it can be changed into another prime (55499684297) 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, 27749842145 + 27749842146.

It is an arithmetic number, because the mean of its divisors is an integer number (27749842146).

Almost surely, 2^55499684291 is an apocalyptic number.

55499684291 is a deficient number, since it is larger than the sum of its proper divisors (1).

55499684291 is an equidigital number, since it uses as much as digits as its factorization.

55499684291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27993600, while the sum is 62.

The spelling of 55499684291 in words is "fifty-five billion, four hundred ninety-nine million, six hundred eighty-four thousand, two hundred ninety-one".