260505359 has 2 divisors, whose sum is σ = 260505360. Its totient is φ = 260505358.

The previous prime is 260505299. The next prime is 260505373. The reversal of 260505359 is 953505062.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260505359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260505389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130252679 + 130252680.

It is an arithmetic number, because the mean of its divisors is an integer number (130252680).

Almost surely, 2^260505359 is an apocalyptic number.

260505359 is a deficient number, since it is larger than the sum of its proper divisors (1).

260505359 is an equidigital number, since it uses as much as digits as its factorization.

260505359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 260505359 is about 16140.1784066967. The cubic root of 260505359 is about 638.6636822556.

The spelling of 260505359 in words is "two hundred sixty million, five hundred five thousand, three hundred fifty-nine".