253116503 has 2 divisors, whose sum is σ = 253116504. Its totient is φ = 253116502.

The previous prime is 253116433. The next prime is 253116509. The reversal of 253116503 is 305611352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253116503 - 2¹² = 253112407 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253116509) 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, 126558251 + 126558252.

It is an arithmetic number, because the mean of its divisors is an integer number (126558252).

Almost surely, 2^253116503 is an apocalyptic number.

253116503 is a deficient number, since it is larger than the sum of its proper divisors (1).

253116503 is an equidigital number, since it uses as much as digits as its factorization.

253116503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 253116503 is about 15909.6355395088. The cubic root of 253116503 is about 632.5674207269.

Adding to 253116503 its reverse (305611352), we get a palindrome (558727855).

The spelling of 253116503 in words is "two hundred fifty-three million, one hundred sixteen thousand, five hundred three".