3265426561 has 2 divisors, whose sum is σ = 3265426562. Its totient is φ = 3265426560.

The previous prime is 3265426537. The next prime is 3265426573. The reversal of 3265426561 is 1656245623.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1667905600 + 1597520961 = 40840^2 + 39969^2 .

It is an emirp because it is prime and its reverse (1656245623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3265426561 - 2¹³ = 3265418369 is a prime.

It is not a weakly prime, because it can be changed into another prime (3265426501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1632713280 + 1632713281.

It is an arithmetic number, because the mean of its divisors is an integer number (1632713281).

Almost surely, 2^3265426561 is an apocalyptic number.

It is an amenable number.

3265426561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3265426561 is an equidigital number, since it uses as much as digits as its factorization.

3265426561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 40.

The square root of 3265426561 is about 57143.9109704612. The cubic root of 3265426561 is about 1483.5879833087.

The spelling of 3265426561 in words is "three billion, two hundred sixty-five million, four hundred twenty-six thousand, five hundred sixty-one".