54775691 has 2 divisors, whose sum is σ = 54775692. Its totient is φ = 54775690.

The previous prime is 54775639. The next prime is 54775711. The reversal of 54775691 is 19657745.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54775691 - 2¹⁴ = 54759307 is a prime.

It is not a weakly prime, because it can be changed into another prime (54775291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27387845 + 27387846.

It is an arithmetic number, because the mean of its divisors is an integer number (27387846).

Almost surely, 2^54775691 is an apocalyptic number.

54775691 is a deficient number, since it is larger than the sum of its proper divisors (1).

54775691 is an equidigital number, since it uses as much as digits as its factorization.

54775691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264600, while the sum is 44.

The square root of 54775691 is about 7401.0601267656. The cubic root of 54775691 is about 379.7775498596. Note that the first 3 decimals are identical.

The spelling of 54775691 in words is "fifty-four million, seven hundred seventy-five thousand, six hundred ninety-one".