54459191 has 2 divisors, whose sum is σ = 54459192. Its totient is φ = 54459190.

The previous prime is 54459179. The next prime is 54459233. The reversal of 54459191 is 19195445.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54459191 - 2¹⁴ = 54442807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54459151) 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 as a sum of consecutive naturals, namely, 27229595 + 27229596.

It is an arithmetic number, because the mean of its divisors is an integer number (27229596).

Almost surely, 2^54459191 is an apocalyptic number.

54459191 is a deficient number, since it is larger than the sum of its proper divisors (1).

54459191 is an equidigital number, since it uses as much as digits as its factorization.

54459191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 38.

The square root of 54459191 is about 7379.6470782823. The cubic root of 54459191 is about 379.0446709297.

The spelling of 54459191 in words is "fifty-four million, four hundred fifty-nine thousand, one hundred ninety-one".