325545033553221 has 16 divisors (see below), whose sum is σ = 440425526681088. Its totient is φ = 213850780844400.

The previous prime is 325545033553219. The next prime is 325545033553253. The reversal of 325545033553221 is 122355330545523.

It is a happy number.

It is not a de Polignac number, because 325545033553221 - 2¹ = 325545033553219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325545033553211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437057895 + ... + 437802116.

It is an arithmetic number, because the mean of its divisors is an integer number (27526595417568).

Almost surely, 2^{325545033553221} is an apocalyptic number.

It is an amenable number.

325545033553221 is a deficient number, since it is larger than the sum of its proper divisors (114880493127867).

325545033553221 is a wasteful number, since it uses less digits than its factorization.

325545033553221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874861832.

The product of its (nonzero) digits is 8100000, while the sum is 48.

The spelling of 325545033553221 in words is "three hundred twenty-five trillion, five hundred forty-five billion, thirty-three million, five hundred fifty-three thousand, two hundred twenty-one".