54440291 has 2 divisors, whose sum is σ = 54440292. Its totient is φ = 54440290.

The previous prime is 54440237. The next prime is 54440293. The reversal of 54440291 is 19204445.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54440291 - 2¹⁸ = 54178147 is a prime.

Together with 54440293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54440293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27220145 + 27220146.

It is an arithmetic number, because the mean of its divisors is an integer number (27220146).

Almost surely, 2^54440291 is an apocalyptic number.

54440291 is a deficient number, since it is larger than the sum of its proper divisors (1).

54440291 is an equidigital number, since it uses as much as digits as its factorization.

54440291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 54440291 is about 7378.3664181172. The cubic root of 54440291 is about 379.0008168495. Note that the first 3 decimals are identical.

The spelling of 54440291 in words is "fifty-four million, four hundred forty thousand, two hundred ninety-one".