54575128817 has 4 divisors (see below), whose sum is σ = 59536504176. Its totient is φ = 49613753460.

The previous prime is 54575128807. The next prime is 54575128879. The reversal of 54575128817 is 71882157545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54575128817 - 2¹⁴ = 54575112433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54575128807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2480687663 + ... + 2480687684.

It is an arithmetic number, because the mean of its divisors is an integer number (14884126044).

Almost surely, 2^54575128817 is an apocalyptic number.

It is an amenable number.

54575128817 is a deficient number, since it is larger than the sum of its proper divisors (4961375359).

54575128817 is a wasteful number, since it uses less digits than its factorization.

54575128817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4961375358.

The product of its digits is 3136000, while the sum is 53.

The spelling of 54575128817 in words is "fifty-four billion, five hundred seventy-five million, one hundred twenty-eight thousand, eight hundred seventeen".