54617043515 has 16 divisors (see below), whose sum is σ = 66786415488. Its totient is φ = 42863223936.

The previous prime is 54617043479. The next prime is 54617043517. The reversal of 54617043515 is 51534071645.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 54617043515 - 2¹⁴ = 54617027131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54617043517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3429902 + ... + 3445788.

It is an arithmetic number, because the mean of its divisors is an integer number (4174150968).

Almost surely, 2^54617043515 is an apocalyptic number.

54617043515 is a deficient number, since it is larger than the sum of its proper divisors (12169371973).

54617043515 is a wasteful number, since it uses less digits than its factorization.

54617043515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28918.

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 54617043515 in words is "fifty-four billion, six hundred seventeen million, forty-three thousand, five hundred fifteen".