54354512081 has 2 divisors, whose sum is σ = 54354512082. Its totient is φ = 54354512080.

The previous prime is 54354512071. The next prime is 54354512089. The reversal of 54354512081 is 18021545345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31476437056 + 22878075025 = 177416^2 + 151255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54354512081 is a prime.

It is a super-2 number, since 2×54354512081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54354512089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27177256040 + 27177256041.

It is an arithmetic number, because the mean of its divisors is an integer number (27177256041).

Almost surely, 2^54354512081 is an apocalyptic number.

It is an amenable number.

54354512081 is a deficient number, since it is larger than the sum of its proper divisors (1).

54354512081 is an equidigital number, since it uses as much as digits as its factorization.

54354512081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 54354512081 in words is "fifty-four billion, three hundred fifty-four million, five hundred twelve thousand, eighty-one".