85646967225 has 24 divisors (see below), whose sum is σ = 143062822560. Its totient is φ = 45207467520.

The previous prime is 85646967221. The next prime is 85646967229. The reversal of 85646967225 is 52276964658.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85646967221) and next prime (85646967229).

It is not a de Polignac number, because 85646967225 - 2² = 85646967221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85646967221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5879115 + ... + 5893664.

It is an arithmetic number, because the mean of its divisors is an integer number (5960950940).

Almost surely, 2^85646967225 is an apocalyptic number.

It is an amenable number.

85646967225 is a deficient number, since it is larger than the sum of its proper divisors (57415855335).

85646967225 is a wasteful number, since it uses less digits than its factorization.

85646967225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11772889 (or 11772884 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 60.

The spelling of 85646967225 in words is "eighty-five billion, six hundred forty-six million, nine hundred sixty-seven thousand, two hundred twenty-five".