54401663 has 2 divisors, whose sum is σ = 54401664. Its totient is φ = 54401662.

The previous prime is 54401657. The next prime is 54401707. The reversal of 54401663 is 36610445.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54401663 - 2²⁰ = 53353087 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54401563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27200831 + 27200832.

It is an arithmetic number, because the mean of its divisors is an integer number (27200832).

Almost surely, 2^54401663 is an apocalyptic number.

54401663 is a deficient number, since it is larger than the sum of its proper divisors (1).

54401663 is an equidigital number, since it uses as much as digits as its factorization.

54401663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 54401663 is about 7375.7483010200. The cubic root of 54401663 is about 378.9111558818.

The spelling of 54401663 in words is "fifty-four million, four hundred one thousand, six hundred sixty-three".