325518913 has 2 divisors, whose sum is σ = 325518914. Its totient is φ = 325518912.

The previous prime is 325518877. The next prime is 325518917. The reversal of 325518913 is 319815523.

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., 311769649 + 13749264 = 17657^2 + 3708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325518913 is a prime.

It is not a weakly prime, because it can be changed into another prime (325518917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162759456 + 162759457.

It is an arithmetic number, because the mean of its divisors is an integer number (162759457).

Almost surely, 2^325518913 is an apocalyptic number.

It is an amenable number.

325518913 is a deficient number, since it is larger than the sum of its proper divisors (1).

325518913 is an equidigital number, since it uses as much as digits as its factorization.

325518913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 37.

The square root of 325518913 is about 18042.1426942589. The cubic root of 325518913 is about 687.9001574795.

The spelling of 325518913 in words is "three hundred twenty-five million, five hundred eighteen thousand, nine hundred thirteen".