55430900017 has 2 divisors, whose sum is σ = 55430900018. Its totient is φ = 55430900016.

The previous prime is 55430899943. The next prime is 55430900023. The reversal of 55430900017 is 71000903455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54875873536 + 555026481 = 234256^2 + 23559^2 .

It is a cyclic number.

It is not a de Polignac number, because 55430900017 - 2¹⁵ = 55430867249 is a prime.

It is not a weakly prime, because it can be changed into another prime (55430900047) 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, 27715450008 + 27715450009.

It is an arithmetic number, because the mean of its divisors is an integer number (27715450009).

Almost surely, 2^55430900017 is an apocalyptic number.

It is an amenable number.

55430900017 is a deficient number, since it is larger than the sum of its proper divisors (1).

55430900017 is an equidigital number, since it uses as much as digits as its factorization.

55430900017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The spelling of 55430900017 in words is "fifty-five billion, four hundred thirty million, nine hundred thousand, seventeen".