705533261 has 2 divisors, whose sum is σ = 705533262. Its totient is φ = 705533260.

The previous prime is 705533243. The next prime is 705533263. The reversal of 705533261 is 162335507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 581099236 + 124434025 = 24106^2 + 11155^2 .

It is an emirp because it is prime and its reverse (162335507) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-705533261 is a prime.

Together with 705533263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705533263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352766630 + 352766631.

It is an arithmetic number, because the mean of its divisors is an integer number (352766631).

Almost surely, 2^705533261 is an apocalyptic number.

It is an amenable number.

705533261 is a deficient number, since it is larger than the sum of its proper divisors (1).

705533261 is an equidigital number, since it uses as much as digits as its factorization.

705533261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 705533261 is about 26561.8760820843. The cubic root of 705533261 is about 890.2373902794.

Adding to 705533261 its reverse (162335507), we get a palindrome (867868768).

The spelling of 705533261 in words is "seven hundred five million, five hundred thirty-three thousand, two hundred sixty-one".