55000717 has 2 divisors, whose sum is σ = 55000718. Its totient is φ = 55000716.

The previous prime is 55000709. The next prime is 55000723. The reversal of 55000717 is 71700055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53202436 + 1798281 = 7294^2 + 1341^2 .

It is a cyclic number.

It is not a de Polignac number, because 55000717 - 2³ = 55000709 is a prime.

It is equal to p_3282235 and since 55000717 and 3282235 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 55000691 and 55000700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55000787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27500358 + 27500359.

It is an arithmetic number, because the mean of its divisors is an integer number (27500359).

Almost surely, 2^55000717 is an apocalyptic number.

It is an amenable number.

55000717 is a deficient number, since it is larger than the sum of its proper divisors (1).

55000717 is an equidigital number, since it uses as much as digits as its factorization.

55000717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1225, while the sum is 25.

The square root of 55000717 is about 7416.2468270683. The cubic root of 55000717 is about 380.2968986247.

The spelling of 55000717 in words is "fifty-five million, seven hundred seventeen", and thus it is an aban number.