54009091 has 2 divisors, whose sum is σ = 54009092. Its totient is φ = 54009090.

The previous prime is 54009047. The next prime is 54009101. The reversal of 54009091 is 19090045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54009091 - 2⁹ = 54008579 is a prime.

It is not a weakly prime, because it can be changed into another prime (54009031) 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, 27004545 + 27004546.

It is an arithmetic number, because the mean of its divisors is an integer number (27004546).

Almost surely, 2^54009091 is an apocalyptic number.

54009091 is a deficient number, since it is larger than the sum of its proper divisors (1).

54009091 is an equidigital number, since it uses as much as digits as its factorization.

54009091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 54009091 is about 7349.0877665191. The cubic root of 54009091 is about 377.9975247825.

The spelling of 54009091 in words is "fifty-four million, nine thousand, ninety-one".