54551005081 has 2 divisors, whose sum is σ = 54551005082. Its totient is φ = 54551005080.

The previous prime is 54551005027. The next prime is 54551005123. The reversal of 54551005081 is 18050015545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31472534025 + 23078471056 = 177405^2 + 151916^2 .

It is a cyclic number.

It is not a de Polignac number, because 54551005081 - 2¹⁵ = 54550972313 is a prime.

It is a super-2 number, since 2×54551005081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54551005001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27275502540 + 27275502541.

It is an arithmetic number, because the mean of its divisors is an integer number (27275502541).

Almost surely, 2^54551005081 is an apocalyptic number.

It is an amenable number.

54551005081 is a deficient number, since it is larger than the sum of its proper divisors (1).

54551005081 is an equidigital number, since it uses as much as digits as its factorization.

54551005081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20000, while the sum is 34.

The spelling of 54551005081 in words is "fifty-four billion, five hundred fifty-one million, five thousand, eighty-one".