85107563 has 2 divisors, whose sum is σ = 85107564. Its totient is φ = 85107562.

The previous prime is 85107541. The next prime is 85107577. The reversal of 85107563 is 36570158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85107563 - 2²⁴ = 68330347 is a prime.

It is not a weakly prime, because it can be changed into another prime (85107263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42553781 + 42553782.

It is an arithmetic number, because the mean of its divisors is an integer number (42553782).

Almost surely, 2^85107563 is an apocalyptic number.

85107563 is a deficient number, since it is larger than the sum of its proper divisors (1).

85107563 is an equidigital number, since it uses as much as digits as its factorization.

85107563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 85107563 is about 9225.3760356963. The cubic root of 85107563 is about 439.8683542112.

The spelling of 85107563 in words is "eighty-five million, one hundred seven thousand, five hundred sixty-three".