255780341 has 2 divisors, whose sum is σ = 255780342. Its totient is φ = 255780340.

The previous prime is 255780323. The next prime is 255780347. The reversal of 255780341 is 143087552.

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., 251349316 + 4431025 = 15854^2 + 2105^2 .

It is a cyclic number.

It is not a de Polignac number, because 255780341 - 2²² = 251586037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255780347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127890170 + 127890171.

It is an arithmetic number, because the mean of its divisors is an integer number (127890171).

Almost surely, 2^255780341 is an apocalyptic number.

It is an amenable number.

255780341 is a deficient number, since it is larger than the sum of its proper divisors (1).

255780341 is an equidigital number, since it uses as much as digits as its factorization.

255780341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 255780341 is about 15993.1341831425. The cubic root of 255780341 is about 634.7787610453.

The spelling of 255780341 in words is "two hundred fifty-five million, seven hundred eighty thousand, three hundred forty-one".