85500059 has 2 divisors, whose sum is σ = 85500060. Its totient is φ = 85500058.

The previous prime is 85500029. The next prime is 85500061. The reversal of 85500059 is 95000558.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85500059 - 2⁸ = 85499803 is a prime.

It is a Sophie Germain prime.

Together with 85500061, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 85499998 and 85500034.

It is not a weakly prime, because it can be changed into another prime (85500029) 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, 42750029 + 42750030.

It is an arithmetic number, because the mean of its divisors is an integer number (42750030).

Almost surely, 2^85500059 is an apocalyptic number.

85500059 is a deficient number, since it is larger than the sum of its proper divisors (1).

85500059 is an equidigital number, since it uses as much as digits as its factorization.

85500059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 85500059 is about 9246.6241948075. The cubic root of 85500059 is about 440.5435070791.

The spelling of 85500059 in words is "eighty-five million, five hundred thousand, fifty-nine".