325421221153 has 4 divisors (see below), whose sum is σ = 371909967040. Its totient is φ = 278932475268.

The previous prime is 325421221127. The next prime is 325421221163. The reversal of 325421221153 is 351122124523.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325421221153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325421221163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23244372933 + ... + 23244372946.

It is an arithmetic number, because the mean of its divisors is an integer number (92977491760).

Almost surely, 2^325421221153 is an apocalyptic number.

It is an amenable number.

325421221153 is a deficient number, since it is larger than the sum of its proper divisors (46488745887).

325421221153 is an equidigital number, since it uses as much as digits as its factorization.

325421221153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46488745886.

The product of its digits is 14400, while the sum is 31.

Adding to 325421221153 its reverse (351122124523), we get a palindrome (676543345676).

The spelling of 325421221153 in words is "three hundred twenty-five billion, four hundred twenty-one million, two hundred twenty-one thousand, one hundred fifty-three".