512251 has 2 divisors, whose sum is σ = 512252. Its totient is φ = 512250.

The previous prime is 512249. The next prime is 512269. The reversal of 512251 is 152215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 512251 - 2¹ = 512249 is a prime.

Together with 512249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (516251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256125 + 256126.

It is an arithmetic number, because the mean of its divisors is an integer number (256126).

2⁵¹²²⁵¹ is an apocalyptic number.

512251 is a deficient number, since it is larger than the sum of its proper divisors (1).

512251 is an equidigital number, since it uses as much as digits as its factorization.

512251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100, while the sum is 16.

The square root of 512251 is about 715.7171228914. The cubic root of 512251 is about 80.0130707810.

Adding to 512251 its reverse (152215), we get a palindrome (664466).

The spelling of 512251 in words is "five hundred twelve thousand, two hundred fifty-one".