85259659 has 2 divisors, whose sum is σ = 85259660. Its totient is φ = 85259658.

The previous prime is 85259651. The next prime is 85259687. The reversal of 85259659 is 95695258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85259659 - 2³ = 85259651 is a prime.

It is not a weakly prime, because it can be changed into another prime (85259651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42629829 + 42629830.

It is an arithmetic number, because the mean of its divisors is an integer number (42629830).

Almost surely, 2^85259659 is an apocalyptic number.

85259659 is a deficient number, since it is larger than the sum of its proper divisors (1).

85259659 is an equidigital number, since it uses as much as digits as its factorization.

85259659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972000, while the sum is 49.

The square root of 85259659 is about 9233.6157056702. The cubic root of 85259659 is about 440.1302283253.

The spelling of 85259659 in words is "eighty-five million, two hundred fifty-nine thousand, six hundred fifty-nine".