264045563 has 2 divisors, whose sum is σ = 264045564. Its totient is φ = 264045562.

The previous prime is 264045557. The next prime is 264045623. The reversal of 264045563 is 365540462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264045563 - 2¹⁸ = 263783419 is a prime.

It is not a weakly prime, because it can be changed into another prime (264045503) 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, 132022781 + 132022782.

It is an arithmetic number, because the mean of its divisors is an integer number (132022782).

Almost surely, 2^264045563 is an apocalyptic number.

264045563 is a deficient number, since it is larger than the sum of its proper divisors (1).

264045563 is an equidigital number, since it uses as much as digits as its factorization.

264045563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 264045563 is about 16249.4788531817. The cubic root of 264045563 is about 641.5437691507.

The spelling of 264045563 in words is "two hundred sixty-four million, forty-five thousand, five hundred sixty-three".