55718573 has 2 divisors, whose sum is σ = 55718574. Its totient is φ = 55718572.

The previous prime is 55718561. The next prime is 55718603. The reversal of 55718573 is 37581755.

55718573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54434884 + 1283689 = 7378^2 + 1133^2 .

It is a cyclic number.

It is not a de Polignac number, because 55718573 - 2¹⁰ = 55717549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55718573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55718513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27859286 + 27859287.

It is an arithmetic number, because the mean of its divisors is an integer number (27859287).

Almost surely, 2^55718573 is an apocalyptic number.

It is an amenable number.

55718573 is a deficient number, since it is larger than the sum of its proper divisors (1).

55718573 is an equidigital number, since it uses as much as digits as its factorization.

55718573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147000, while the sum is 41.

The square root of 55718573 is about 7464.4874572873. The cubic root of 55718573 is about 381.9442665142.

The spelling of 55718573 in words is "fifty-five million, seven hundred eighteen thousand, five hundred seventy-three".