325500305621 has 2 divisors, whose sum is σ = 325500305622. Its totient is φ = 325500305620.

The previous prime is 325500305573. The next prime is 325500305657. The reversal of 325500305621 is 126503005523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219572839396 + 105927466225 = 468586^2 + 325465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325500305621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325500304621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162750152810 + 162750152811.

It is an arithmetic number, because the mean of its divisors is an integer number (162750152811).

Almost surely, 2^325500305621 is an apocalyptic number.

It is an amenable number.

325500305621 is a deficient number, since it is larger than the sum of its proper divisors (1).

325500305621 is an equidigital number, since it uses as much as digits as its factorization.

325500305621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 32.

The spelling of 325500305621 in words is "three hundred twenty-five billion, five hundred million, three hundred five thousand, six hundred twenty-one".