65026261 has 2 divisors, whose sum is σ = 65026262. Its totient is φ = 65026260.

The previous prime is 65026259. The next prime is 65026301. The reversal of 65026261 is 16262056.

65026261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63600625 + 1425636 = 7975^2 + 1194^2 .

It is a cyclic number.

It is not a de Polignac number, because 65026261 - 2¹ = 65026259 is a prime.

Together with 65026259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65026211) 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, 32513130 + 32513131.

It is an arithmetic number, because the mean of its divisors is an integer number (32513131).

Almost surely, 2^65026261 is an apocalyptic number.

It is an amenable number.

65026261 is a deficient number, since it is larger than the sum of its proper divisors (1).

65026261 is an equidigital number, since it uses as much as digits as its factorization.

65026261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 65026261 is about 8063.8862219156. The cubic root of 65026261 is about 402.1267164038.

The spelling of 65026261 in words is "sixty-five million, twenty-six thousand, two hundred sixty-one".