254660255081 has 2 divisors, whose sum is σ = 254660255082. Its totient is φ = 254660255080.

The previous prime is 254660255033. The next prime is 254660255111. The reversal of 254660255081 is 180552066452.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174406464400 + 80253790681 = 417620^2 + 283291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254660255081 is a prime.

It is a super-2 number, since 2×254660255081² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (254660255011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127330127540 + 127330127541.

It is an arithmetic number, because the mean of its divisors is an integer number (127330127541).

Almost surely, 2^254660255081 is an apocalyptic number.

It is an amenable number.

254660255081 is a deficient number, since it is larger than the sum of its proper divisors (1).

254660255081 is an equidigital number, since it uses as much as digits as its factorization.

254660255081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 254660255081 in words is "two hundred fifty-four billion, six hundred sixty million, two hundred fifty-five thousand, eighty-one".