260554849 has 2 divisors, whose sum is σ = 260554850. Its totient is φ = 260554848.

The previous prime is 260554843. The next prime is 260554859. The reversal of 260554849 is 948455062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138297600 + 122257249 = 11760^2 + 11057^2 .

It is a cyclic number.

It is not a de Polignac number, because 260554849 - 2²¹ = 258457697 is a prime.

It is not a weakly prime, because it can be changed into another prime (260554843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130277424 + 130277425.

It is an arithmetic number, because the mean of its divisors is an integer number (130277425).

Almost surely, 2^260554849 is an apocalyptic number.

It is an amenable number.

260554849 is a deficient number, since it is larger than the sum of its proper divisors (1).

260554849 is an equidigital number, since it uses as much as digits as its factorization.

260554849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 260554849 is about 16141.7114644018. The cubic root of 260554849 is about 638.7041234765.

The spelling of 260554849 in words is "two hundred sixty million, five hundred fifty-four thousand, eight hundred forty-nine".