253205503 has 2 divisors, whose sum is σ = 253205504. Its totient is φ = 253205502.

The previous prime is 253205501. The next prime is 253205509. The reversal of 253205503 is 305502352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253205503 - 2¹ = 253205501 is a prime.

It is a super-2 number, since 2×253205503² = 128226053498966018, which contains 22 as substring.

Together with 253205501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253205501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126602751 + 126602752.

It is an arithmetic number, because the mean of its divisors is an integer number (126602752).

Almost surely, 2^253205503 is an apocalyptic number.

253205503 is a deficient number, since it is larger than the sum of its proper divisors (1).

253205503 is an equidigital number, since it uses as much as digits as its factorization.

253205503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 253205503 is about 15912.4323407831. The cubic root of 253205503 is about 632.6415524707.

Adding to 253205503 its reverse (305502352), we get a palindrome (558707855).

The spelling of 253205503 in words is "two hundred fifty-three million, two hundred five thousand, five hundred three".