250530503 has 2 divisors, whose sum is σ = 250530504. Its totient is φ = 250530502.

The previous prime is 250530493. The next prime is 250530551. The reversal of 250530503 is 305035052.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 250530503 - 2⁶ = 250530439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250530563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125265251 + 125265252.

It is an arithmetic number, because the mean of its divisors is an integer number (125265252).

Almost surely, 2^250530503 is an apocalyptic number.

250530503 is a deficient number, since it is larger than the sum of its proper divisors (1).

250530503 is an equidigital number, since it uses as much as digits as its factorization.

250530503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 250530503 is about 15828.1553884210. The cubic root of 250530503 is about 630.4058047306.

Adding to 250530503 its reverse (305035052), we get a palindrome (555565555).

The spelling of 250530503 in words is "two hundred fifty million, five hundred thirty thousand, five hundred three".