3242551561 has 2 divisors, whose sum is σ = 3242551562. Its totient is φ = 3242551560.

The previous prime is 3242551553. The next prime is 3242551583. The reversal of 3242551561 is 1651552423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2420640000 + 821911561 = 49200^2 + 28669^2 .

It is a cyclic number.

It is not a de Polignac number, because 3242551561 - 2³ = 3242551553 is a prime.

It is not a weakly prime, because it can be changed into another prime (3242551531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1621275780 + 1621275781.

It is an arithmetic number, because the mean of its divisors is an integer number (1621275781).

Almost surely, 2^3242551561 is an apocalyptic number.

It is an amenable number.

3242551561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3242551561 is an equidigital number, since it uses as much as digits as its factorization.

3242551561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 34.

The square root of 3242551561 is about 56943.4066508143. The cubic root of 3242551561 is about 1480.1155803636.

The spelling of 3242551561 in words is "three billion, two hundred forty-two million, five hundred fifty-one thousand, five hundred sixty-one".