53634563 has 2 divisors, whose sum is σ = 53634564. Its totient is φ = 53634562.

The previous prime is 53634547. The next prime is 53634593. The reversal of 53634563 is 36543635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53634563 - 2⁴ = 53634547 is a prime.

It is not a weakly prime, because it can be changed into another prime (53634523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26817281 + 26817282.

It is an arithmetic number, because the mean of its divisors is an integer number (26817282).

Almost surely, 2^53634563 is an apocalyptic number.

53634563 is a deficient number, since it is larger than the sum of its proper divisors (1).

53634563 is an equidigital number, since it uses as much as digits as its factorization.

53634563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 35.

The square root of 53634563 is about 7323.5621797046. The cubic root of 53634563 is about 377.1217514439.

The spelling of 53634563 in words is "fifty-three million, six hundred thirty-four thousand, five hundred sixty-three".