3240552235421 has 2 divisors, whose sum is σ = 3240552235422. Its totient is φ = 3240552235420.

The previous prime is 3240552235397. The next prime is 3240552235493. The reversal of 3240552235421 is 1245322550423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2360952098521 + 879600136900 = 1536539^2 + 937870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3240552235421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3240552235021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620276117710 + 1620276117711.

It is an arithmetic number, because the mean of its divisors is an integer number (1620276117711).

Almost surely, 2^{3240552235421} is an apocalyptic number.

It is an amenable number.

3240552235421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3240552235421 is an equidigital number, since it uses as much as digits as its factorization.

3240552235421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 3240552235421 its reverse (1245322550423), we get a palindrome (4485874785844).

The spelling of 3240552235421 in words is "three trillion, two hundred forty billion, five hundred fifty-two million, two hundred thirty-five thousand, four hundred twenty-one".