53955788717 has 2 divisors, whose sum is σ = 53955788718. Its totient is φ = 53955788716.

The previous prime is 53955788611. The next prime is 53955788743. The reversal of 53955788717 is 71788755935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45844804996 + 8110983721 = 214114^2 + 90061^2 .

It is a cyclic number.

It is not a de Polignac number, because 53955788717 - 2¹² = 53955784621 is a prime.

It is a super-2 number, since 2×53955788717² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53955788417) 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, 26977894358 + 26977894359.

It is an arithmetic number, because the mean of its divisors is an integer number (26977894359).

Almost surely, 2^53955788717 is an apocalyptic number.

It is an amenable number.

53955788717 is a deficient number, since it is larger than the sum of its proper divisors (1).

53955788717 is an equidigital number, since it uses as much as digits as its factorization.

53955788717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74088000, while the sum is 65.

The spelling of 53955788717 in words is "fifty-three billion, nine hundred fifty-five million, seven hundred eighty-eight thousand, seven hundred seventeen".