255055005901001 has 2 divisors, whose sum is σ = 255055005901002. Its totient is φ = 255055005901000.

The previous prime is 255055005900997. The next prime is 255055005901013. The reversal of 255055005901001 is 100109500550552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198978107521600 + 56076898379401 = 14105960^2 + 7488451^2 .

It is a cyclic number.

It is not a de Polignac number, because 255055005901001 - 2² = 255055005900997 is a prime.

It is not a weakly prime, because it can be changed into another prime (255055005904001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127527502950500 + 127527502950501.

It is an arithmetic number, because the mean of its divisors is an integer number (127527502950501).

Almost surely, 2^{255055005901001} is an apocalyptic number.

It is an amenable number.

255055005901001 is a deficient number, since it is larger than the sum of its proper divisors (1).

255055005901001 is an equidigital number, since it uses as much as digits as its factorization.

255055005901001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56250, while the sum is 38.

The spelling of 255055005901001 in words is "two hundred fifty-five trillion, fifty-five billion, five million, nine hundred one thousand, one".