653564567 has 2 divisors, whose sum is σ = 653564568. Its totient is φ = 653564566.

The previous prime is 653564539. The next prime is 653564581. The reversal of 653564567 is 765465356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 653564567 - 2¹² = 653560471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653566567) 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, 326782283 + 326782284.

It is an arithmetic number, because the mean of its divisors is an integer number (326782284).

Almost surely, 2^653564567 is an apocalyptic number.

653564567 is a deficient number, since it is larger than the sum of its proper divisors (1).

653564567 is an equidigital number, since it uses as much as digits as its factorization.

653564567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268000, while the sum is 47.

The square root of 653564567 is about 25564.9088987229. The cubic root of 653564567 is about 867.8196899955.

The spelling of 653564567 in words is "six hundred fifty-three million, five hundred sixty-four thousand, five hundred sixty-seven".