54172868653 has 2 divisors, whose sum is σ = 54172868654. Its totient is φ = 54172868652.

The previous prime is 54172868623. The next prime is 54172868689. The reversal of 54172868653 is 35686827145.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43736611689 + 10436256964 = 209133^2 + 102158^2 .

It is a cyclic number.

It is not a de Polignac number, because 54172868653 - 2¹⁷ = 54172737581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54172868594 and 54172868603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54172868623) 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, 27086434326 + 27086434327.

It is an arithmetic number, because the mean of its divisors is an integer number (27086434327).

Almost surely, 2^54172868653 is an apocalyptic number.

It is an amenable number.

54172868653 is a deficient number, since it is larger than the sum of its proper divisors (1).

54172868653 is an equidigital number, since it uses as much as digits as its factorization.

54172868653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9676800, while the sum is 55.

The spelling of 54172868653 in words is "fifty-four billion, one hundred seventy-two million, eight hundred sixty-eight thousand, six hundred fifty-three".