54663209291 has 2 divisors, whose sum is σ = 54663209292. Its totient is φ = 54663209290.

The previous prime is 54663209273. The next prime is 54663209309. The reversal of 54663209291 is 19290236645.

It is a happy number.

54663209291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (54663209273) and next prime (54663209309).

It is a cyclic number.

It is not a de Polignac number, because 54663209291 - 2³⁰ = 53589467467 is a prime.

It is not a weakly prime, because it can be changed into another prime (54663209231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27331604645 + 27331604646.

It is an arithmetic number, because the mean of its divisors is an integer number (27331604646).

Almost surely, 2^54663209291 is an apocalyptic number.

54663209291 is a deficient number, since it is larger than the sum of its proper divisors (1).

54663209291 is an equidigital number, since it uses as much as digits as its factorization.

54663209291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 54663209291 in words is "fifty-four billion, six hundred sixty-three million, two hundred nine thousand, two hundred ninety-one".