54545291 has 2 divisors, whose sum is σ = 54545292. Its totient is φ = 54545290.

The previous prime is 54545287. The next prime is 54545327. The reversal of 54545291 is 19254545.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54545291 - 2² = 54545287 is a prime.

It is not a weakly prime, because it can be changed into another prime (54545221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27272645 + 27272646.

It is an arithmetic number, because the mean of its divisors is an integer number (27272646).

Almost surely, 2^54545291 is an apocalyptic number.

54545291 is a deficient number, since it is larger than the sum of its proper divisors (1).

54545291 is an equidigital number, since it uses as much as digits as its factorization.

54545291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 35.

The square root of 54545291 is about 7385.4783866721. The cubic root of 54545291 is about 379.2443223360.

The spelling of 54545291 in words is "fifty-four million, five hundred forty-five thousand, two hundred ninety-one".