325350135521 has 2 divisors, whose sum is σ = 325350135522. Its totient is φ = 325350135520.

The previous prime is 325350135493. The next prime is 325350135547. The reversal of 325350135521 is 125531053523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 300343457296 + 25006678225 = 548036^2 + 158135^2 .

It is a cyclic number.

It is not a de Polignac number, because 325350135521 - 2¹⁰ = 325350134497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (325350132521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162675067760 + 162675067761.

It is an arithmetic number, because the mean of its divisors is an integer number (162675067761).

Almost surely, 2^325350135521 is an apocalyptic number.

It is an amenable number.

325350135521 is a deficient number, since it is larger than the sum of its proper divisors (1).

325350135521 is an equidigital number, since it uses as much as digits as its factorization.

325350135521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 35.

The spelling of 325350135521 in words is "three hundred twenty-five billion, three hundred fifty million, one hundred thirty-five thousand, five hundred twenty-one".