15609552241 has 2 divisors, whose sum is σ = 15609552242. Its totient is φ = 15609552240.

The previous prime is 15609552227. The next prime is 15609552289. The reversal of 15609552241 is 14225590651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7832958016 + 7776594225 = 88504^2 + 88185^2 .

It is a cyclic number.

It is not a de Polignac number, because 15609552241 - 2⁹ = 15609551729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15609552194 and 15609552203.

It is not a weakly prime, because it can be changed into another prime (15609559241) 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, 7804776120 + 7804776121.

It is an arithmetic number, because the mean of its divisors is an integer number (7804776121).

Almost surely, 2^15609552241 is an apocalyptic number.

It is an amenable number.

15609552241 is a deficient number, since it is larger than the sum of its proper divisors (1).

15609552241 is an equidigital number, since it uses as much as digits as its factorization.

15609552241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 15609552241 in words is "fifteen billion, six hundred nine million, five hundred fifty-two thousand, two hundred forty-one".