55847017 has 2 divisors, whose sum is σ = 55847018. Its totient is φ = 55847016.

The previous prime is 55847009. The next prime is 55847021. The reversal of 55847017 is 71074855.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35271721 + 20575296 = 5939^2 + 4536^2 .

It is a cyclic number.

It is not a de Polignac number, because 55847017 - 2³ = 55847009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55844017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27923508 + 27923509.

It is an arithmetic number, because the mean of its divisors is an integer number (27923509).

Almost surely, 2^55847017 is an apocalyptic number.

It is an amenable number.

55847017 is a deficient number, since it is larger than the sum of its proper divisors (1).

55847017 is an equidigital number, since it uses as much as digits as its factorization.

55847017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 55847017 is about 7473.0861764066. The cubic root of 55847017 is about 382.2375307883.

The spelling of 55847017 in words is "fifty-five million, eight hundred forty-seven thousand, seventeen".