268005503 has 2 divisors, whose sum is σ = 268005504. Its totient is φ = 268005502.

The previous prime is 268005487. The next prime is 268005539. The reversal of 268005503 is 305500862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268005503 - 2⁴ = 268005487 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 (268005593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134002751 + 134002752.

It is an arithmetic number, because the mean of its divisors is an integer number (134002752).

Almost surely, 2^268005503 is an apocalyptic number.

268005503 is a deficient number, since it is larger than the sum of its proper divisors (1).

268005503 is an equidigital number, since it uses as much as digits as its factorization.

268005503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 268005503 is about 16370.8736174952. The cubic root of 268005503 is about 644.7349855725.

The spelling of 268005503 in words is "two hundred sixty-eight million, five thousand, five hundred three".