325435192921 has 2 divisors, whose sum is σ = 325435192922. Its totient is φ = 325435192920.

The previous prime is 325435192913. The next prime is 325435192939. The reversal of 325435192921 is 129291534523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278083256896 + 47351936025 = 527336^2 + 217605^2 .

It is an emirp because it is prime and its reverse (129291534523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 325435192921 - 2³ = 325435192913 is a prime.

It is not a weakly prime, because it can be changed into another prime (325435192021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162717596460 + 162717596461.

It is an arithmetic number, because the mean of its divisors is an integer number (162717596461).

Almost surely, 2^325435192921 is an apocalyptic number.

It is an amenable number.

325435192921 is a deficient number, since it is larger than the sum of its proper divisors (1).

325435192921 is an equidigital number, since it uses as much as digits as its factorization.

325435192921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 46.

The spelling of 325435192921 in words is "three hundred twenty-five billion, four hundred thirty-five million, one hundred ninety-two thousand, nine hundred twenty-one".