54555745217 has 8 divisors (see below), whose sum is σ = 55000458240. Its totient is φ = 54112607280.

The previous prime is 54555745213. The next prime is 54555745241. The reversal of 54555745217 is 71254755545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54555745217 - 2² = 54555745213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54555745213) 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 7 ways as a sum of consecutive naturals, for example, 324167 + ... + 462812.

It is an arithmetic number, because the mean of its divisors is an integer number (6875057280).

Almost surely, 2^54555745217 is an apocalyptic number.

It is an amenable number.

54555745217 is a deficient number, since it is larger than the sum of its proper divisors (444713023).

54555745217 is a wasteful number, since it uses less digits than its factorization.

54555745217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787543.

The product of its digits is 4900000, while the sum is 50.

The spelling of 54555745217 in words is "fifty-four billion, five hundred fifty-five million, seven hundred forty-five thousand, two hundred seventeen".