262882561 has 2 divisors, whose sum is σ = 262882562. Its totient is φ = 262882560.

The previous prime is 262882481. The next prime is 262882589. The reversal of 262882561 is 165288262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142563600 + 120318961 = 11940^2 + 10969^2 .

It is a cyclic number.

It is not a de Polignac number, because 262882561 - 2⁹ = 262882049 is a prime.

It is not a weakly prime, because it can be changed into another prime (262882261) 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, 131441280 + 131441281.

It is an arithmetic number, because the mean of its divisors is an integer number (131441281).

Almost surely, 2^262882561 is an apocalyptic number.

It is an amenable number.

262882561 is a deficient number, since it is larger than the sum of its proper divisors (1).

262882561 is an equidigital number, since it uses as much as digits as its factorization.

262882561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 40.

The square root of 262882561 is about 16213.6535364488. The cubic root of 262882561 is about 640.6004789060.

The spelling of 262882561 in words is "two hundred sixty-two million, eight hundred eighty-two thousand, five hundred sixty-one".