254404142011517 has 2 divisors, whose sum is σ = 254404142011518. Its totient is φ = 254404142011516.

The previous prime is 254404142011499. The next prime is 254404142011541. The reversal of 254404142011517 is 715110241404452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226730534765476 + 27673607246041 = 15057574^2 + 5260571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254404142011517 is a prime.

It is a super-2 number, since 2×254404142011517² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254404142013517) 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, 127202071005758 + 127202071005759.

It is an arithmetic number, because the mean of its divisors is an integer number (127202071005759).

Almost surely, 2^{254404142011517} is an apocalyptic number.

It is an amenable number.

254404142011517 is a deficient number, since it is larger than the sum of its proper divisors (1).

254404142011517 is an equidigital number, since it uses as much as digits as its factorization.

254404142011517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 179200, while the sum is 41.

Adding to 254404142011517 its reverse (715110241404452), we get a palindrome (969514383415969).

The spelling of 254404142011517 in words is "two hundred fifty-four trillion, four hundred four billion, one hundred forty-two million, eleven thousand, five hundred seventeen".