255934849 has 2 divisors, whose sum is σ = 255934850. Its totient is φ = 255934848.

The previous prime is 255934801. The next prime is 255934891. The reversal of 255934849 is 948439552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247495824 + 8439025 = 15732^2 + 2905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255934849 is a prime.

It is not a weakly prime, because it can be changed into another prime (255934249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127967424 + 127967425.

It is an arithmetic number, because the mean of its divisors is an integer number (127967425).

Almost surely, 2^255934849 is an apocalyptic number.

It is an amenable number.

255934849 is a deficient number, since it is larger than the sum of its proper divisors (1).

255934849 is an equidigital number, since it uses as much as digits as its factorization.

255934849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 49.

The square root of 255934849 is about 15997.9639016970. The cubic root of 255934849 is about 634.9065512349.

The spelling of 255934849 in words is "two hundred fifty-five million, nine hundred thirty-four thousand, eight hundred forty-nine".