54555464191 has 4 divisors (see below), whose sum is σ = 54599568472. Its totient is φ = 54511359912.

The previous prime is 54555464177. The next prime is 54555464209. The reversal of 54555464191 is 19146455545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54555464191 - 2⁹ = 54555463679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54555464141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22050285 + ... + 22052758.

It is an arithmetic number, because the mean of its divisors is an integer number (13649892118).

Almost surely, 2^54555464191 is an apocalyptic number.

54555464191 is a deficient number, since it is larger than the sum of its proper divisors (44104281).

54555464191 is a wasteful number, since it uses less digits than its factorization.

54555464191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44104280.

The product of its digits is 2160000, while the sum is 49.

The spelling of 54555464191 in words is "fifty-four billion, five hundred fifty-five million, four hundred sixty-four thousand, one hundred ninety-one".