325115993 has 2 divisors, whose sum is σ = 325115994. Its totient is φ = 325115992.

The previous prime is 325115977. The next prime is 325116053. The reversal of 325115993 is 399511523.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174979984 + 150136009 = 13228^2 + 12253^2 .

It is an emirp because it is prime and its reverse (399511523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 325115993 - 2⁴ = 325115977 is a prime.

It is not a weakly prime, because it can be changed into another prime (325115093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162557996 + 162557997.

It is an arithmetic number, because the mean of its divisors is an integer number (162557997).

Almost surely, 2^325115993 is an apocalyptic number.

It is an amenable number.

325115993 is a deficient number, since it is larger than the sum of its proper divisors (1).

325115993 is an equidigital number, since it uses as much as digits as its factorization.

325115993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36450, while the sum is 38.

The square root of 325115993 is about 18030.9731573202. The cubic root of 325115993 is about 687.6162178406.

The spelling of 325115993 in words is "three hundred twenty-five million, one hundred fifteen thousand, nine hundred ninety-three".