54055020557 has 2 divisors, whose sum is σ = 54055020558. Its totient is φ = 54055020556.

The previous prime is 54055020533. The next prime is 54055020623. The reversal of 54055020557 is 75502055045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46150210276 + 7904810281 = 214826^2 + 88909^2 .

It is a cyclic number.

It is not a de Polignac number, because 54055020557 - 2¹⁶ = 54054955021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54055020557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54055020527) 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, 27027510278 + 27027510279.

It is an arithmetic number, because the mean of its divisors is an integer number (27027510279).

Almost surely, 2^54055020557 is an apocalyptic number.

It is an amenable number.

54055020557 is a deficient number, since it is larger than the sum of its proper divisors (1).

54055020557 is an equidigital number, since it uses as much as digits as its factorization.

54055020557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 175000, while the sum is 38.

The spelling of 54055020557 in words is "fifty-four billion, fifty-five million, twenty thousand, five hundred fifty-seven".