75653563 has 2 divisors, whose sum is σ = 75653564. Its totient is φ = 75653562.

The previous prime is 75653551. The next prime is 75653579. The reversal of 75653563 is 36535657.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75653563 - 2⁵ = 75653531 is a prime.

It is not a weakly prime, because it can be changed into another prime (75653363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37826781 + 37826782.

It is an arithmetic number, because the mean of its divisors is an integer number (37826782).

Almost surely, 2^75653563 is an apocalyptic number.

75653563 is a deficient number, since it is larger than the sum of its proper divisors (1).

75653563 is an equidigital number, since it uses as much as digits as its factorization.

75653563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 283500, while the sum is 40.

The square root of 75653563 is about 8697.9056674581. The cubic root of 75653563 is about 422.9377613179.

The spelling of 75653563 in words is "seventy-five million, six hundred fifty-three thousand, five hundred sixty-three".