325313155221 has 16 divisors (see below), whose sum is σ = 452922537984. Its totient is φ = 207302643504.

The previous prime is 325313155217. The next prime is 325313155253. The reversal of 325313155221 is 122551313523.

325313155221 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 325313155221 - 2² = 325313155217 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325313155121) 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, 1529281 + ... + 1728966.

It is an arithmetic number, because the mean of its divisors is an integer number (28307658624).

Almost surely, 2^325313155221 is an apocalyptic number.

It is an amenable number.

325313155221 is a deficient number, since it is larger than the sum of its proper divisors (127609382763).

325313155221 is a wasteful number, since it uses less digits than its factorization.

325313155221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259720.

The product of its digits is 27000, while the sum is 33.

Adding to 325313155221 its reverse (122551313523), we get a palindrome (447864468744).

The spelling of 325313155221 in words is "three hundred twenty-five billion, three hundred thirteen million, one hundred fifty-five thousand, two hundred twenty-one".