253745603 has 2 divisors, whose sum is σ = 253745604. Its totient is φ = 253745602.

The previous prime is 253745581. The next prime is 253745617. The reversal of 253745603 is 306547352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253745603 - 2⁸ = 253745347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253745663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126872801 + 126872802.

It is an arithmetic number, because the mean of its divisors is an integer number (126872802).

Almost surely, 2^253745603 is an apocalyptic number.

253745603 is a deficient number, since it is larger than the sum of its proper divisors (1).

253745603 is an equidigital number, since it uses as much as digits as its factorization.

253745603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 35.

The square root of 253745603 is about 15929.3943073803. The cubic root of 253745603 is about 633.0910517099.

The spelling of 253745603 in words is "two hundred fifty-three million, seven hundred forty-five thousand, six hundred three".