54056665049 has 2 divisors, whose sum is σ = 54056665050. Its totient is φ = 54056665048.

The previous prime is 54056665037. The next prime is 54056665087. The reversal of 54056665049 is 94056665045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51856398400 + 2200266649 = 227720^2 + 46907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54056665049 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 54056664988 and 54056665006.

It is not a weakly prime, because it can be changed into another prime (54056665349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27028332524 + 27028332525.

It is an arithmetic number, because the mean of its divisors is an integer number (27028332525).

Almost surely, 2^54056665049 is an apocalyptic number.

It is an amenable number.

54056665049 is a deficient number, since it is larger than the sum of its proper divisors (1).

54056665049 is an equidigital number, since it uses as much as digits as its factorization.

54056665049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 54056665049 in words is "fifty-four billion, fifty-six million, six hundred sixty-five thousand, forty-nine".