54155840499 has 12 divisors (see below), whose sum is σ = 78227149000. Its totient is φ = 36102949344.

The previous prime is 54155840449. The next prime is 54155840527. The reversal of 54155840499 is 99404855145.

54155840499 is a `hidden beast` number, since 5 + 4 + 1 + 558 + 40 + 49 + 9 = 666.

It is not a de Polignac number, because 54155840499 - 2¹⁵ = 54155807731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54155840419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 543072 + ... + 635010.

Almost surely, 2^54155840499 is an apocalyptic number.

54155840499 is a deficient number, since it is larger than the sum of its proper divisors (24071308501).

54155840499 is a wasteful number, since it uses less digits than its factorization.

54155840499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157394 (or 157391 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 54155840499 in words is "fifty-four billion, one hundred fifty-five million, eight hundred forty thousand, four hundred ninety-nine".