253604503 has 2 divisors, whose sum is σ = 253604504. Its totient is φ = 253604502.

The previous prime is 253604471. The next prime is 253604513. The reversal of 253604503 is 305406352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253604503 - 2⁵ = 253604471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253604513) 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, 126802251 + 126802252.

It is an arithmetic number, because the mean of its divisors is an integer number (126802252).

Almost surely, 2^253604503 is an apocalyptic number.

253604503 is a deficient number, since it is larger than the sum of its proper divisors (1).

253604503 is an equidigital number, since it uses as much as digits as its factorization.

253604503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 253604503 is about 15924.9647723315. The cubic root of 253604503 is about 632.9736825691.

The spelling of 253604503 in words is "two hundred fifty-three million, six hundred four thousand, five hundred three".