255331251452489 has 2 divisors, whose sum is σ = 255331251452490. Its totient is φ = 255331251452488.

The previous prime is 255331251452357. The next prime is 255331251452573. The reversal of 255331251452489 is 984254152133552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205444434888889 + 49886816563600 = 14333333^2 + 7063060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255331251452489 is a prime.

It is not a weakly prime, because it can be changed into another prime (255331251452689) 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, 127665625726244 + 127665625726245.

It is an arithmetic number, because the mean of its divisors is an integer number (127665625726245).

Almost surely, 2^{255331251452489} is an apocalyptic number.

It is an amenable number.

255331251452489 is a deficient number, since it is larger than the sum of its proper divisors (1).

255331251452489 is an equidigital number, since it uses as much as digits as its factorization.

255331251452489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840000, while the sum is 59.

The spelling of 255331251452489 in words is "two hundred fifty-five trillion, three hundred thirty-one billion, two hundred fifty-one million, four hundred fifty-two thousand, four hundred eighty-nine".