325005251 has 2 divisors, whose sum is σ = 325005252. Its totient is φ = 325005250.

The previous prime is 325005179. The next prime is 325005257. The reversal of 325005251 is 152500523.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325005251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (325005257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162502625 + 162502626.

It is an arithmetic number, because the mean of its divisors is an integer number (162502626).

Almost surely, 2^325005251 is an apocalyptic number.

325005251 is a deficient number, since it is larger than the sum of its proper divisors (1).

325005251 is an equidigital number, since it uses as much as digits as its factorization.

325005251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 325005251 is about 18027.9020132682. The cubic root of 325005251 is about 687.5381363308.

Adding to 325005251 its reverse (152500523), we get a palindrome (477505774).

The spelling of 325005251 in words is "three hundred twenty-five million, five thousand, two hundred fifty-one".