54650831548721 has 2 divisors, whose sum is σ = 54650831548722. Its totient is φ = 54650831548720.

The previous prime is 54650831548679. The next prime is 54650831548727. The reversal of 54650831548721 is 12784513805645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34491952810225 + 20158878738496 = 5872985^2 + 4489864^2 .

It is a cyclic number.

It is not a de Polignac number, because 54650831548721 - 2¹⁴ = 54650831532337 is a prime.

It is not a weakly prime, because it can be changed into another prime (54650831548727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27325415774360 + 27325415774361.

It is an arithmetic number, because the mean of its divisors is an integer number (27325415774361).

Almost surely, 2^{54650831548721} is an apocalyptic number.

It is an amenable number.

54650831548721 is a deficient number, since it is larger than the sum of its proper divisors (1).

54650831548721 is an equidigital number, since it uses as much as digits as its factorization.

54650831548721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256000, while the sum is 59.

The spelling of 54650831548721 in words is "fifty-four trillion, six hundred fifty billion, eight hundred thirty-one million, five hundred forty-eight thousand, seven hundred twenty-one".