250231525217 has 2 divisors, whose sum is σ = 250231525218. Its totient is φ = 250231525216.

The previous prime is 250231525129. The next prime is 250231525231. The reversal of 250231525217 is 712525132052.

250231525217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162305042641 + 87926482576 = 402871^2 + 296524^2 .

It is a cyclic number.

It is not a de Polignac number, because 250231525217 - 2¹⁴ = 250231508833 is a prime.

It is a super-2 number, since 2×250231525217² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (250231525237) 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, 125115762608 + 125115762609.

It is an arithmetic number, because the mean of its divisors is an integer number (125115762609).

Almost surely, 2^250231525217 is an apocalyptic number.

It is an amenable number.

250231525217 is a deficient number, since it is larger than the sum of its proper divisors (1).

250231525217 is an equidigital number, since it uses as much as digits as its factorization.

250231525217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42000, while the sum is 35.

Adding to 250231525217 its reverse (712525132052), we get a palindrome (962756657269).

The spelling of 250231525217 in words is "two hundred fifty billion, two hundred thirty-one million, five hundred twenty-five thousand, two hundred seventeen".