55606488647 has 2 divisors, whose sum is σ = 55606488648. Its totient is φ = 55606488646.

The previous prime is 55606488601. The next prime is 55606488649. The reversal of 55606488647 is 74688460655.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55606488647 - 2⁶ = 55606488583 is a prime.

Together with 55606488649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55606488649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27803244323 + 27803244324.

It is an arithmetic number, because the mean of its divisors is an integer number (27803244324).

Almost surely, 2^55606488647 is an apocalyptic number.

55606488647 is a deficient number, since it is larger than the sum of its proper divisors (1).

55606488647 is an equidigital number, since it uses as much as digits as its factorization.

55606488647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38707200, while the sum is 59.

The spelling of 55606488647 in words is "fifty-five billion, six hundred six million, four hundred eighty-eight thousand, six hundred forty-seven".