54678422487553 has 2 divisors, whose sum is σ = 54678422487554. Its totient is φ = 54678422487552.

The previous prime is 54678422487529. The next prime is 54678422487659. The reversal of 54678422487553 is 35578422487645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43057639196224 + 11620783291329 = 6561832^2 + 3408927^2 .

It is a cyclic number.

It is not a de Polignac number, because 54678422487553 - 2⁹ = 54678422487041 is a prime.

It is not a weakly prime, because it can be changed into another prime (54678422487523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27339211243776 + 27339211243777.

It is an arithmetic number, because the mean of its divisors is an integer number (27339211243777).

Almost surely, 2^{54678422487553} is an apocalyptic number.

It is an amenable number.

54678422487553 is a deficient number, since it is larger than the sum of its proper divisors (1).

54678422487553 is an equidigital number, since it uses as much as digits as its factorization.

54678422487553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1806336000, while the sum is 70.

The spelling of 54678422487553 in words is "fifty-four trillion, six hundred seventy-eight billion, four hundred twenty-two million, four hundred eighty-seven thousand, five hundred fifty-three".