85378256 has 10 divisors (see below), whose sum is σ = 165420402. Its totient is φ = 42689120.

The previous prime is 85378219. The next prime is 85378261. The reversal of 85378256 is 65287358.

It can be written as a sum of positive squares in only one way, i.e., 51552400 + 33825856 = 7180^2 + 5816^2 .

It is a congruent number.

It is an unprimeable number.

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, 2668055 + ... + 2668086.

Almost surely, 2^85378256 is an apocalyptic number.

It is an amenable number.

85378256 is a deficient number, since it is larger than the sum of its proper divisors (80042146).

85378256 is a wasteful number, since it uses less digits than its factorization.

85378256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5336149 (or 5336143 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 85378256 is about 9240.0354977673. The cubic root of 85378256 is about 440.3342088920.

The spelling of 85378256 in words is "eighty-five million, three hundred seventy-eight thousand, two hundred fifty-six".