325557601349 has 2 divisors, whose sum is σ = 325557601350. Its totient is φ = 325557601348.

The previous prime is 325557601339. The next prime is 325557601351. The reversal of 325557601349 is 943106755523.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319829836225 + 5727765124 = 565535^2 + 75682^2 .

It is an emirp because it is prime and its reverse (943106755523) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325557601349 is a prime.

It is a super-2 number, since 2×325557601349² (a number of 24 digits) contains 22 as substring.

Together with 325557601351, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 325557601297 and 325557601306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325557601309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162778800674 + 162778800675.

It is an arithmetic number, because the mean of its divisors is an integer number (162778800675).

Almost surely, 2^325557601349 is an apocalyptic number.

It is an amenable number.

325557601349 is a deficient number, since it is larger than the sum of its proper divisors (1).

325557601349 is an equidigital number, since it uses as much as digits as its factorization.

325557601349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402000, while the sum is 50.

The spelling of 325557601349 in words is "three hundred twenty-five billion, five hundred fifty-seven million, six hundred one thousand, three hundred forty-nine".