3252500782781 has 2 divisors, whose sum is σ = 3252500782782. Its totient is φ = 3252500782780.

The previous prime is 3252500782771. The next prime is 3252500782829. The reversal of 3252500782781 is 1872870052523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2901196824100 + 351303958681 = 1703290^2 + 592709^2 .

It is a cyclic number.

It is not a de Polignac number, because 3252500782781 - 2²² = 3252496588477 is a prime.

It is a super-2 number, since 2×3252500782781² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3252500782721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1626250391390 + 1626250391391.

It is an arithmetic number, because the mean of its divisors is an integer number (1626250391391).

Almost surely, 2^{3252500782781} is an apocalyptic number.

It is an amenable number.

3252500782781 is a deficient number, since it is larger than the sum of its proper divisors (1).

3252500782781 is an equidigital number, since it uses as much as digits as its factorization.

3252500782781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 3252500782781 in words is "three trillion, two hundred fifty-two billion, five hundred million, seven hundred eighty-two thousand, seven hundred eighty-one".