54570005681 has 2 divisors, whose sum is σ = 54570005682. Its totient is φ = 54570005680.

The previous prime is 54570005669. The next prime is 54570005683. The reversal of 54570005681 is 18650007545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40959283456 + 13610722225 = 202384^2 + 116665^2 .

It is a cyclic number.

It is not a de Polignac number, because 54570005681 - 2¹⁴ = 54569989297 is a prime.

It is a super-2 number, since 2×54570005681² (a number of 22 digits) contains 22 as substring.

Together with 54570005683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54570005683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27285002840 + 27285002841.

It is an arithmetic number, because the mean of its divisors is an integer number (27285002841).

Almost surely, 2^54570005681 is an apocalyptic number.

It is an amenable number.

54570005681 is a deficient number, since it is larger than the sum of its proper divisors (1).

54570005681 is an equidigital number, since it uses as much as digits as its factorization.

54570005681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 54570005681 in words is "fifty-four billion, five hundred seventy million, five thousand, six hundred eighty-one".