54146568557 has 6 divisors (see below), whose sum is σ = 55169927982. Its totient is φ = 53123273112.

The previous prime is 54146568547. The next prime is 54146568563. The reversal of 54146568557 is 75586564145.

54146568557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 50060035081 + 4086533476 = 223741^2 + 63926^2 .

It is not a de Polignac number, because 54146568557 - 2¹⁰ = 54146567533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54146568547) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1678058 + ... + 1710020.

It is an arithmetic number, because the mean of its divisors is an integer number (9194987997).

Almost surely, 2^54146568557 is an apocalyptic number.

It is an amenable number.

54146568557 is a deficient number, since it is larger than the sum of its proper divisors (1023359425).

54146568557 is an frugal number, since it uses more digits than its factorization.

54146568557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63979 (or 32016 counting only the distinct ones).

The product of its digits is 20160000, while the sum is 56.

The spelling of 54146568557 in words is "fifty-four billion, one hundred forty-six million, five hundred sixty-eight thousand, five hundred fifty-seven".