251025323 has 2 divisors, whose sum is σ = 251025324. Its totient is φ = 251025322.

The previous prime is 251025293. The next prime is 251025337. The reversal of 251025323 is 323520152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 251025323 - 2¹⁰ = 251024299 is a prime.

It is not a weakly prime, because it can be changed into another prime (251027323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125512661 + 125512662.

It is an arithmetic number, because the mean of its divisors is an integer number (125512662).

Almost surely, 2^251025323 is an apocalyptic number.

251025323 is a deficient number, since it is larger than the sum of its proper divisors (1).

251025323 is an equidigital number, since it uses as much as digits as its factorization.

251025323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 251025323 is about 15843.7786843922. The cubic root of 251025323 is about 630.8205676086.

Adding to 251025323 its reverse (323520152), we get a palindrome (574545475).

The spelling of 251025323 in words is "two hundred fifty-one million, twenty-five thousand, three hundred twenty-three".