264605503 has 2 divisors, whose sum is σ = 264605504. Its totient is φ = 264605502.

The previous prime is 264605489. The next prime is 264605507. The reversal of 264605503 is 305506462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264605503 - 2²⁵ = 231051071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264605507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132302751 + 132302752.

It is an arithmetic number, because the mean of its divisors is an integer number (132302752).

Almost surely, 2^264605503 is an apocalyptic number.

264605503 is a deficient number, since it is larger than the sum of its proper divisors (1).

264605503 is an equidigital number, since it uses as much as digits as its factorization.

264605503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 264605503 is about 16266.6992042024. The cubic root of 264605503 is about 641.9969389062.

The spelling of 264605503 in words is "two hundred sixty-four million, six hundred five thousand, five hundred three".