32641525561 has 2 divisors, whose sum is σ = 32641525562. Its totient is φ = 32641525560.

The previous prime is 32641525523. The next prime is 32641525613. The reversal of 32641525561 is 16552514623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25267009936 + 7374515625 = 158956^2 + 85875^2 .

It is an emirp because it is prime and its reverse (16552514623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32641525561 - 2²³ = 32633136953 is a prime.

It is not a weakly prime, because it can be changed into another prime (32641525061) 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, 16320762780 + 16320762781.

It is an arithmetic number, because the mean of its divisors is an integer number (16320762781).

Almost surely, 2^32641525561 is an apocalyptic number.

It is an amenable number.

32641525561 is a deficient number, since it is larger than the sum of its proper divisors (1).

32641525561 is an equidigital number, since it uses as much as digits as its factorization.

32641525561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216000, while the sum is 40.

The spelling of 32641525561 in words is "thirty-two billion, six hundred forty-one million, five hundred twenty-five thousand, five hundred sixty-one".