255825715885249 has 2 divisors, whose sum is σ = 255825715885250. Its totient is φ = 255825715885248.

The previous prime is 255825715885199. The next prime is 255825715885291. The reversal of 255825715885249 is 942588517528552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203117651244225 + 52708064641024 = 14251935^2 + 7260032^2 .

It is a cyclic number.

It is not a de Polignac number, because 255825715885249 - 2¹¹ = 255825715883201 is a prime.

It is not a weakly prime, because it can be changed into another prime (255825715885349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127912857942624 + 127912857942625.

It is an arithmetic number, because the mean of its divisors is an integer number (127912857942625).

Almost surely, 2^{255825715885249} is an apocalyptic number.

It is an amenable number.

255825715885249 is a deficient number, since it is larger than the sum of its proper divisors (1).

255825715885249 is an equidigital number, since it uses as much as digits as its factorization.

255825715885249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3225600000, while the sum is 76.

The spelling of 255825715885249 in words is "two hundred fifty-five trillion, eight hundred twenty-five billion, seven hundred fifteen million, eight hundred eighty-five thousand, two hundred forty-nine".