54155540673 has 24 divisors (see below), whose sum is σ = 87146852520. Its totient is φ = 32177295360.

The previous prime is 54155540651. The next prime is 54155540693. The reversal of 54155540673 is 37604555145.

54155540673 is a `hidden beast` number, since 5 + 41 + 5 + 5 + 540 + 67 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 212226624 + 53943314049 = 14568^2 + 232257^2 .

It is not a de Polignac number, because 54155540673 - 2¹² = 54155536577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54155540693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7977088 + ... + 7983873.

It is an arithmetic number, because the mean of its divisors is an integer number (3631118855).

Almost surely, 2^54155540673 is an apocalyptic number.

It is an amenable number.

54155540673 is a deficient number, since it is larger than the sum of its proper divisors (32991311847).

54155540673 is a wasteful number, since it uses less digits than its factorization.

54155540673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15961009 (or 15961006 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

The spelling of 54155540673 in words is "fifty-four billion, one hundred fifty-five million, five hundred forty thousand, six hundred seventy-three".