55504717 has 2 divisors, whose sum is σ = 55504718. Its totient is φ = 55504716.

The previous prime is 55504667. The next prime is 55504721. The reversal of 55504717 is 71740555.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50424201 + 5080516 = 7101^2 + 2254^2 .

It is a cyclic number.

It is not a de Polignac number, because 55504717 - 2¹¹ = 55502669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55504777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27752358 + 27752359.

It is an arithmetic number, because the mean of its divisors is an integer number (27752359).

Almost surely, 2^55504717 is an apocalyptic number.

It is an amenable number.

55504717 is a deficient number, since it is larger than the sum of its proper divisors (1).

55504717 is an equidigital number, since it uses as much as digits as its factorization.

55504717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 55504717 is about 7450.1487904605. The cubic root of 55504717 is about 381.4549874262.

The spelling of 55504717 in words is "fifty-five million, five hundred four thousand, seven hundred seventeen".