251250253 has 2 divisors, whose sum is σ = 251250254. Its totient is φ = 251250252.

The previous prime is 251250227. The next prime is 251250289. The reversal of 251250253 is 352052152.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168039369 + 83210884 = 12963^2 + 9122^2 .

It is a cyclic number.

It is not a de Polignac number, because 251250253 - 2⁹ = 251249741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (251250553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125625126 + 125625127.

It is an arithmetic number, because the mean of its divisors is an integer number (125625127).

Almost surely, 2^251250253 is an apocalyptic number.

It is an amenable number.

251250253 is a deficient number, since it is larger than the sum of its proper divisors (1).

251250253 is an equidigital number, since it uses as much as digits as its factorization.

251250253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 251250253 is about 15850.8754647811. The cubic root of 251250253 is about 631.0089259112.

The spelling of 251250253 in words is "two hundred fifty-one million, two hundred fifty thousand, two hundred fifty-three".